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Fab Defense Gun Parts

Compare prices on 518 in-stock Fab Defense gun parts from 14 stores, updated daily. All gun parts

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Als.com Updated Nov 01, 2026

31% OFF

Fab Defense Fab Defense Quad Rail Polymer Handguard For AK-47 - $51.50 at Als.com

Fab Defense Quad Rail Polymer Handguard For AK-47

$51.50 $74.99

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Sportsman's Warehouse Updated Nov 01, 2026

34% OFF

Fab Defense Fab Defense S&W M&P 9 Shield +4 Magazine Extension - Black - Black - $19.92 at Sportsman's Warehouse

Fab Defense S&W M&P 9 Shield +4 Magazine Extension - Black - Black

$19.92 $29.99

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Sportsman's Warehouse Updated Nov 01, 2026

20% OFF

Fab Defense Fab Defense ULTIMAG Window Magazine FDE M16/M4/AR15 5.56mm NATO Rifle Magazine - 30 Rounds - Tan - $15.97 at Sportsman's Warehouse

Fab Defense ULTIMAG Window Magazine FDE M16/M4/AR15 5.56mm NATO Rifle Magazine - 30 Rounds - Tan

$15.97 $19.99

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Sportsman's Warehouse Updated Nov 01, 2026

20% OFF

Fab Defense Fab Defense ULTIMAG Window Magazine Black M16/M4/AR15 5.56mm NATO Rifle Magazine - 30 Rounds - Black - $15.97 at Sportsman's Warehouse

Fab Defense ULTIMAG Window Magazine Black M16/M4/AR15 5.56mm NATO Rifle Magazine - 30 Rounds - Black

$15.97 $19.99

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Sportsman's Warehouse Updated Nov 01, 2026

8% OFF

Fab Defense Fab Defense Bungee Elastic Sling - Black - Black - $21.97 at Sportsman's Warehouse

Fab Defense Bungee Elastic Sling - Black - Black

$21.97 $24.00

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Palmetto State Armory Updated Nov 01, 2026

10% OFF

Fab Defense FAB Defense M4 R10/22 M4 Collapsible Stock Conversion Kit for Ruger 10/22 - FXM4PR1022B - $205.99 at Palmetto State Armory

Fab Defense M4 R10/22 M4 Collapsible Stock Conversion Kit for Ruger 10/22 - FXM4PR1022B

$205.99 $228.99

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Palmetto State Armory Updated Nov 01, 2026

10% OFF

Fab Defense FAB Defense Spike M Precision M-LOK Compatible Bi-Pod 7.09" - 9.88", Black - Precision Bi-Pod for Enhanced Stability - FXSPIKEMB - $159.99 at Palmetto State Armory

Fab Defense Spike M Precision M-LOK Compatible Bi-Pod 7.09" - 9.88", Black - Precision Bi-Pod for Enhanced Stability - FXSPIKEMB

$159.99 $177.99

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Palmetto State Armory Updated Nov 01, 2026

11% OFF

Fab Defense FAB Defense GL-Core Buttstock OD Green - Rugged GL-Core Buttstock for Tactical Use with Enhanced Stability and Comfort - FXGLCOREG - $51.39 at Palmetto State Armory

Fab Defense GL-Core Buttstock OD Green - Rugged GL-Core Buttstock for Tactical Use with Enhanced Stability and Comfort - FXGLCOREG

$51.39 $57.99

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Palmetto State Armory Updated Nov 01, 2026

11% OFF

Fab Defense FAB Defense AG-43 M16/M4/AR-15 Tactical Ergonomic Pistol Grip, OD Green - FX-AG43G - $24.99 at Palmetto State Armory

Fab Defense AG-43 M16/M4/AR-15 Tactical Ergonomic Pistol Grip, OD Green - FX-AG43G

$24.99 $27.99

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Palmetto State Armory Updated Nov 01, 2026

11% OFF

Fab Defense FAB Defense AG-43 M16/M4/AR-15 Tactical Ergonomic Pistol Grip, Flat Dark Earth - FX-AG43T - $24.99 at Palmetto State Armory

Fab Defense AG-43 M16/M4/AR-15 Tactical Ergonomic Pistol Grip, Flat Dark Earth - FX-AG43T

$24.99 $27.99

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Palmetto State Armory Updated Nov 01, 2026

11% OFF

Fab Defense FAB Defense Gradus Ergonomic AK Pistol Grip, Black - Enhanced AK Pistol Grip for Superior Control - FXGRADUSAKB - $21.39 at Palmetto State Armory

Fab Defense Gradus Ergonomic AK Pistol Grip, Black - Enhanced AK Pistol Grip for Superior Control - FXGRADUSAKB

$21.39 $23.99

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense UAS-PRO Ruger UAS Precision Stock Conversion Kit w/Handguard and Upper Rails Black - $188.60 at Optics Planet

Fab Defense UAS-PRO Ruger UAS Precision Stock Conversion Kit w/Handguard and Upper Rails Black

$188.60 $205.00

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense UAS-R Ruger UAS Precision Stock Conversion Kit Black - $146.60 at Optics Planet

Fab Defense UAS-R Ruger UAS Precision Stock Conversion Kit Black

$146.60 $159.30

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense UAS-R Ruger UAS Precision Stock Conversion Kit Flat Dark Earth - $146.60 at Optics Planet

Fab Defense UAS-R Ruger UAS Precision Stock Conversion Kit Flat Dark Earth

$146.60 $159.30

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense ULTIMAG CZ Sa vz. 58 7.62x39mm 10 Rounds Rifle Magazine Black fx-umagvzr10b - $20.20 at Optics Planet

Fab Defense ULTIMAG CZ Sa vz. 58 7.62x39mm 10 Rounds Rifle Magazine Black fx-umagvzr10b

$20.20 $21.85

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense AK-47 Vanguard M-LOK Handguard System Black - $41.00 at Optics Planet

Fab Defense AK-47 Vanguard M-LOK Handguard System Black

$41.00 $44.50

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Optics Planet Updated Nov 01, 2026

65% OFF

Fab Defense FAB Defense AK-47 Vanguard M-LOK Handguard System FDE - $15.49 at Optics Planet

Fab Defense AK-47 Vanguard M-LOK Handguard System FDE

$15.49 $44.50

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense AK-47 Vanguard M-LOK Handguard System OD Green FX-VANAKG - $41.00 at Optics Planet

Fab Defense AK-47 Vanguard M-LOK Handguard System OD Green FX-VANAKG

$41.00 $44.50

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Optics Planet Updated Nov 01, 2026

82% OFF

Fab Defense FAB Defense Tactic Skin Slide Cover For Glock 17 OD Green - $5.49 at Optics Planet

Fab Defense Tactic Skin Slide Cover For Glock 17 OD Green

$5.49 $30.49

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense UAS-PRO Ruger UAS Precision Stock Conversion Kit w/Handguard and Upper Rails OD Green - $188.60 at Optics Planet

Fab Defense UAS-PRO Ruger UAS Precision Stock Conversion Kit w/Handguard and Upper Rails OD Green

$188.60 $205.00

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense UAS-R Ruger UAS Precision Stock Conversion Kit OD Green - $146.60 at Optics Planet

Fab Defense UAS-R Ruger UAS Precision Stock Conversion Kit OD Green

$146.60 $159.30

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense MCE Polymer 5.56/7.62 Magazine Coupler w/Straps Black - $22.10 at Optics Planet

Fab Defense MCE Polymer 5.56/7.62 Magazine Coupler w/Straps Black

$22.10 $24.00

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense UAS-PRO Ruger UAS Precision Stock Conversion Kit w/Handguard and Upper Rails Flat Dark Earth - $188.60 at Optics Planet

Fab Defense UAS-PRO Ruger UAS Precision Stock Conversion Kit w/Handguard and Upper Rails Flat Dark Earth

$188.60 $205.00

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Optics Planet Updated Nov 01, 2026

82% OFF

Fab Defense FAB Defense Tactic Skin Slide Cover For Glock 17 Red - $5.49 at Optics Planet

Fab Defense Tactic Skin Slide Cover For Glock 17 Red

$5.49 $30.49

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Optics Planet Updated Nov 01, 2026

60% OFF

Fab Defense FAB Defense Tactical Buttstock w/ Cheek Riser for SAIGA Joint Black - $72.49 at Optics Planet

Fab Defense Tactical Buttstock w/ Cheek Riser for SAIGA Joint Black

$72.49 $182.40

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense Tactical Folding Buttstock w/ Cheek Piece for AK-47/74 Black - $132.50 at Optics Planet

Fab Defense Tactical Folding Buttstock w/ Cheek Piece for AK-47/74 Black

$132.50 $144.00

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Optics Planet Updated Nov 01, 2026

57% OFF

Fab Defense FAB Defense 3/4in Mount for Tactical Light/Laser - AR15/M4 Bayonet Lug - $50.49 at Optics Planet

Fab Defense 3/4in Mount for Tactical Light/Laser - AR15/M4 Bayonet Lug

$50.49 $117.55

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Optics Planet Updated Nov 01, 2026

43% OFF

Fab Defense FAB Defense Polymer Quad Rail Handguards - Benelli M4 Shotgun - $51.49 at Optics Planet

Fab Defense Polymer Quad Rail Handguards - Benelli M4 Shotgun

$51.49 $89.95

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense Krinkov AKS 74U Quard Handguard Rail System Black - $71.80 at Optics Planet

Fab Defense Krinkov AKS 74U Quard Handguard Rail System Black

$71.80 $77.95

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Optics Planet Updated Nov 01, 2026

65% OFF

Fab Defense FAB Defense VZ-58 Handguard Rail System Black - $27.49 at Optics Planet

Fab Defense VZ-58 Handguard Rail System Black

$27.49 $77.95

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Optics Planet Updated Nov 01, 2026

74% OFF

Fab Defense FAB Defense VZ-58 Set Of Lower And Upper Handguards Tan fx-sa58t - $20.49 at Optics Planet

Fab Defense VZ-58 Set Of Lower And Upper Handguards Tan fx-sa58t

$20.49 $77.95

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Optics Planet Updated Nov 01, 2026

62% OFF

Fab Defense FAB Defense Vz-58 Set Of Lower And Upper Handguards OD Green - $29.49 at Optics Planet

Fab Defense Vz-58 Set Of Lower And Upper Handguards OD Green

$29.49 $77.95

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Optics Planet Updated Nov 01, 2026

75% OFF

Fab Defense FAB Defense Upper and Lower Handguard Rail System Set for AK-47/74 OD Green - $19.49 at Optics Planet

Fab Defense Upper and Lower Handguard Rail System Set for AK-47/74 OD Green

$19.49 $77.95

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Optics Planet Updated Nov 01, 2026

80% OFF

Fab Defense FAB Defense Upper and Lower Handguard Rail System Set for AK-47/74 Flat Dark Earth - $15.49 at Optics Planet

Fab Defense Upper and Lower Handguard Rail System Set for AK-47/74 Flat Dark Earth

$15.49 $77.95

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense Upper and Lower Handguard Rail System Set for AK-47/74 Black - $71.80 at Optics Planet

Fab Defense Upper and Lower Handguard Rail System Set for AK-47/74 Black

$71.80 $77.95

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Optics Planet Updated Nov 01, 2026

9% OFF

Fab Defense FAB Defense 1in Quick Release Tactical Flashlight Mount Desert Tan - $24.49 at Optics Planet

Fab Defense 1in Quick Release Tactical Flashlight Mount Desert Tan

$24.49 $27.05

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense Sniper Rubberized Buttpad for GL-Shock and GL-MAG stocks Black - $23.50 at Optics Planet

Fab Defense Sniper Rubberized Buttpad for GL-Shock and GL-MAG stocks Black

$23.50 $25.50

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense Opposite Magazine Coupler for Two 10rd Ultimag Magazines - $14.10 at Optics Planet

Fab Defense Opposite Magazine Coupler for Two 10rd Ultimag Magazines

$14.10 $15.30

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense Universal Polymer Magazine Coupler Black FX-TZ2 - $11.00 at Optics Planet

Fab Defense Universal Polymer Magazine Coupler Black FX-TZ2

$11.00 $11.95

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense 9mm/MP5 Magazine Couplers Black - $10.10 at Optics Planet

Fab Defense 9mm/MP5 Magazine Couplers Black

$10.10 $10.95

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 SKS SB Complete Chassis System w/ Shock Absorbing M4 Tube & Buttstock Black - $313.30 at Optics Planet

Fab Defense M4 SKS SB Complete Chassis System w/ Shock Absorbing M4 Tube & Buttstock Black

$313.30 $340.50

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 SKS SB Complete Chassis System w/ Shock Absorbing M4 Tube & Buttstock OD Green - $313.30 at Optics Planet

Fab Defense M4 SKS SB Complete Chassis System w/ Shock Absorbing M4 Tube & Buttstock OD Green

$313.30 $340.50

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 SKS Complete Chassis System w/ M4 Buttstock Black - $255.80 at Optics Planet

Fab Defense M4 SKS Complete Chassis System w/ M4 Buttstock Black

$255.80 $278.00

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 SKS Complete Chassis System w/ M4 Buttstock OD Green - $255.80 at Optics Planet

Fab Defense M4 SKS Complete Chassis System w/ M4 Buttstock OD Green

$255.80 $278.00

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense UAS SKS Complete Chassis System w/ UAS Buttstock Black - $215.80 at Optics Planet

Fab Defense UAS SKS Complete Chassis System w/ UAS Buttstock Black

$215.80 $234.50

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense UAS SKS Complete Chassis System w/ UAS Buttstock OD Green - $215.80 at Optics Planet

Fab Defense UAS SKS Complete Chassis System w/ UAS Buttstock OD Green

$215.80 $234.50

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense UAS SKS Complete Chassis System w/ UAS Buttstock FDE - $215.80 at Optics Planet

Fab Defense UAS SKS Complete Chassis System w/ UAS Buttstock FDE

$215.80 $234.50

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 Buttstock for Rem 870 w/ Shock Absorber Black AGR870-FKSB - $234.60 at Optics Planet

Fab Defense M4 Buttstock for Rem 870 w/ Shock Absorber Black AGR870-FKSB

$234.60 $255.00

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 Folding Buttstock for Moss 500 Black - $191.10 at Optics Planet

Fab Defense M4 Folding Buttstock for Moss 500 Black

$191.10 $207.70

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 Buttstock for Rem 870 Black - $147.20 at Optics Planet

Fab Defense M4 Buttstock for Rem 870 Black

$147.20 $160.00

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense Remington 870 Solid Piece Pistol Grip and UAS Buttstock w/ Folding Knuckle Black - $154.10 at Optics Planet

Fab Defense Remington 870 Solid Piece Pistol Grip and UAS Buttstock w/ Folding Knuckle Black

$154.10 $167.40

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Optics Planet Updated Nov 01, 2026

88% OFF

Fab Defense FAB Defense Handguard w/Rails For Remington Model 870 OD Green - $7.49 at Optics Planet

Fab Defense Handguard w/Rails For Remington Model 870 OD Green

$7.49 $64.50

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Optics Planet Updated Nov 01, 2026

91% OFF

Fab Defense FAB Defense Handguard w/Rails For Remington Model 870 Flat Dark Earth - $5.49 at Optics Planet

Fab Defense Handguard w/Rails For Remington Model 870 Flat Dark Earth

$5.49 $64.50

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Optics Planet Updated Nov 01, 2026

87% OFF

Fab Defense FAB Defense Handguard Accessory Rail System For Mossberg 500/590 Flat Dark Earth - $8.49 at Optics Planet

Fab Defense Handguard Accessory Rail System For Mossberg 500/590 Flat Dark Earth

$8.49 $64.50

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Optics Planet Updated Nov 01, 2026

91% OFF

Fab Defense FAB Defense Handguard Accessory Rail System For Mossberg 500/590 OD Green - $5.49 at Optics Planet

Fab Defense Handguard Accessory Rail System For Mossberg 500/590 OD Green

$5.49 $64.50

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense Handguard Accessory Rail System For Mossberg 500/590 Black - $59.40 at Optics Planet

Fab Defense Handguard Accessory Rail System For Mossberg 500/590 Black

$59.40 $64.50

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Optics Planet Updated Nov 01, 2026

84% OFF

Fab Defense FAB Defense Handguard w/Rails For Remington Model 870 Black - $10.49 at Optics Planet

Fab Defense Handguard w/Rails For Remington Model 870 Black

$10.49 $64.50

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Optics Planet Updated Nov 01, 2026

4% OFF

Fab Defense FAB Defense M-LOK Compatible Handguard for Mossberg 500/590 FDE fx-van500t - $35.99 at Optics Planet

Fab Defense M-LOK Compatible Handguard for Mossberg 500/590 FDE fx-van500t

$35.99 $37.49

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Optics Planet Updated Nov 01, 2026

5% OFF

Fab Defense FAB Defense M-LOK Compatible Handguard for Mossberg 500/590 ODG fx-van500g - $35.49 at Optics Planet

Fab Defense M-LOK Compatible Handguard for Mossberg 500/590 ODG fx-van500g

$35.49 $37.49

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Optics Planet Updated Nov 01, 2026

81% OFF

Fab Defense FAB Defense M-LOK Compatible Handguard for Remington Model 870 Black fx-van870b - $6.49 at Optics Planet

Fab Defense M-LOK Compatible Handguard for Remington Model 870 Black fx-van870b

$6.49 $34.10

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Optics Planet Updated Nov 01, 2026

6% OFF

Fab Defense FAB Defense M-LOK Compatible Handguard for Mossberg 500/590 Black fx-van500b - $31.99 at Optics Planet

Fab Defense M-LOK Compatible Handguard for Mossberg 500/590 Black fx-van500b

$31.99 $34.10

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Optics Planet Updated Nov 01, 2026

83% OFF

Fab Defense FAB Defense MP5 Tactical Stock for use W/Riot Helmet/Visor Black - $100.49 at Optics Planet

Fab Defense MP5 Tactical Stock for use W/Riot Helmet/Visor Black

$100.49 $580.95

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 Buttstock for Moss 500 and Solid Piece Pistol Grip Black AGM500-FK - $159.00 at Optics Planet

Fab Defense M4 Buttstock for Moss 500 and Solid Piece Pistol Grip Black AGM500-FK

$159.00 $172.80

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense Rem 870 Pistol Grip - $44.20 at Optics Planet

Fab Defense Rem 870 Pistol Grip

$44.20 $48.00

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense Moss 500 Pistol Grip Black - $44.20 at Optics Planet

Fab Defense Moss 500 Pistol Grip Black

$44.20 $48.00

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 Folding Buttstock for Moss 500 w/ Shock Absorber Black AGMF500-FKSB - $258.70 at Optics Planet

Fab Defense M4 Folding Buttstock for Moss 500 w/ Shock Absorber Black AGMF500-FKSB

$258.70 $281.10

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 Buttstock for Moss 500 w/ Shock Absorber Black - $234.60 at Optics Planet

Fab Defense M4 Buttstock for Moss 500 w/ Shock Absorber Black

$234.60 $255.00

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 Folding Buttstock for Rem 870 w/ Shock Absorber Black - $258.70 at Optics Planet

Fab Defense M4 Folding Buttstock for Rem 870 w/ Shock Absorber Black

$258.70 $281.10

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 Folding Buttstock for Remington 870 Black AGRF870-FK - $159.00 at Optics Planet

Fab Defense M4 Folding Buttstock for Remington 870 Black AGRF870-FK

$159.00 $172.80

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Optics Planet Updated Nov 01, 2026

83% OFF

Fab Defense FAB Defense OMC Ultimag 10R Dual Magazine Coupler Kit FDE fx-omckt - $9.49 at Optics Planet

Fab Defense OMC Ultimag 10R Dual Magazine Coupler Kit FDE fx-omckt

$9.49 $54.50

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Optics Planet Updated Nov 01, 2026

90% OFF

Fab Defense FAB Defense OMC Ultimag 10R Dual Magazine Coupler Kit OD Green fx-omckg - $5.49 at Optics Planet

Fab Defense OMC Ultimag 10R Dual Magazine Coupler Kit OD Green fx-omckg

$5.49 $54.50

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense Ultimag 10R Pentagon Magazine Kit 5 Ultimag Magazines with Five 5 Ultimags 10 Round Black - $106.30 at Optics Planet

Fab Defense Ultimag 10R Pentagon Magazine Kit 5 Ultimag Magazines with Five 5 Ultimags 10 Round Black

$106.30 $115.50

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense PMC Ultimag 10R Pentagon Magazine Kit 10 Round OD Green fx-pmckg - $106.30 at Optics Planet

Fab Defense PMC Ultimag 10R Pentagon Magazine Kit 10 Round OD Green fx-pmckg

$106.30 $115.50

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Optics Planet Updated Nov 01, 2026

17% OFF

Fab Defense FAB Defense Aluminum Heckler & Koch MP5 Picatinny Rail System Black - $235.00 at Optics Planet

Fab Defense Aluminum Heckler & Koch MP5 Picatinny Rail System Black

$235.00 $282.00

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Optics Planet Updated Nov 01, 2026

8% OFF

Fab Defense FAB Defense M4 Polymer Magazine Coupler Black - $20.70 at Optics Planet

Fab Defense M4 Polymer Magazine Coupler Black

$20.70 $22.40

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Where to buy Fab Defense gun parts

Optics Planet 157 in stock
MidwayUSA 120 in stock
GrabAGun 72 in stock
Natchez Shooting & Outdoors 40 in stock
Palmetto State Armory 40 in stock
Sportsman's Warehouse 30 in stock
Ammunition Depot 25 in stock
The Real Grit 12 in stock