Diamondback Firearms Gun Parts

Current Deals & Offers

Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB380 Black 380 Auto (ACP) Handgun Magazine - 6 Rounds - Black

$24.99

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB 300 AAC Blackout Vanadium Steel Rifle Barrel - 16in - Black Nitride - Black

$113.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB 6.5 Grendel Vanadium Steel Rifle Barrel - 18in - Black Nitride - Black 5/8 x 24

$136.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DBAM29 Stainless Steel 9mm Luger Magazine - 12 Rounds - Stainless

$26.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB 5.56mm NATO Vanadium Steel Pistol Barrel - 10in - Black Nitride - 1/2 x 28

$98.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB 308 Winchester Vanadium Steel Rifle Barrel - 18in - Black Nitride - Black 5/8 x 24

$137.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB 308 Winchester Vanadium Steel Pistol Barrel - 13.5in - Black Nitride - 5/8 x 24

$139.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB 308 Winchester Vanadium Steel Rifle Barrel - 16in - Black Nitride - Black 5/8 x 24

$142.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB 6.5 Creedmoor Fluted Steel Rifle Barrel - 20in - Stainless - 5/8 x 24

$180.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB M4 Profile 5.56mm NATO Vanadium Steel Rifle Barrel - 16in - Black Nitride - Black 1/2 x 28

$103.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback 223 Wylde Stainless Steel Rifle Barrel - 18in - Black QPQ - Black 1/2 x 28

$109.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB 9mm Luger Vanadium Steel Pistol Barrel - 10in - Black Nitride

$80.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB 5.56mm NATO Vanadium Steel Pistol Barrel - 7in - Black Nitride - 1/2 x 28

$84.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB 7.62x39mm Vanadium Steel Pistol Barrel - 7in - Black Nitride - 5/8 x 24

$88.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DBAM29 Black/Flat Dark Earth 9mm Luger Magazine - 17 Rounds - Black/Flat Dark Earth

$29.00

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DBAM29 Stainless Steel 9mm Luger Magazine - 17 Rounds - Stainless

$29.00

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Optics Planet Updated Oct 26, 2026

40% OFF

Diamondback Firearms Magazine DB380/32 6RD 6RD

$25.99 $43.34

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Optics Planet Updated Oct 26, 2026

31% OFF

Diamondback Firearms Magazine DB9 9MM 6RD 6RD

$28.99 $42.00

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Optics Planet Updated Oct 26, 2026

27% OFF

Diamondback Firearms OEM Replacement Barrel Diamondback DB10 6.5mm Creedmoor 20in Medium Profile Rifle-Length 1-8 Twist 5/8 x 24 Thread Fluted SS Bead

$159.99 $219.99

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Optics Planet Updated Oct 26, 2026

40% OFF

Diamondback Firearms OEM Replacement Barrel Springfield Armory M1A .308 Winchester 13.5in Medium Profile Mid-Length 1-10 Twist 5/8 x 24 Thread 4150

$125.99 $211.68

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Optics Planet Updated Oct 26, 2026

9% OFF

Diamondback Firearms OEM Replacement Barrel Springfield Armory M1A .308 Winchester 16in Light Profile Mid-Length 1-10 Twist 5/8 x 24 Thread CrMov

$149.99 $163.99

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Optics Planet Updated Oct 26, 2026

39% OFF

Diamondback Firearms OEM Replacement Barrel FN Herstal M16 5.56x45mm NATO 16in Medium/M4 Profile Carbine-Length 1-8 Twist 1/2 x 28 Thread 4150 CrMov

$93.99 $154.98

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Optics Planet Updated Oct 26, 2026

7% OFF

Diamondback Firearms OEM Replacement Barrel FN Herstal M16 5.56x45mm NATO 5.5in Heavy Profile Pistol-Length 1-8 Twist 1/2 x 28 Thread 4150 CrMov Black

$99.99 $107.99

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Optics Planet Updated Oct 26, 2026

38% OFF

Diamondback Firearms OEM Replacement Barrel FN Herstal M16 5.56x45mm NATO 7in Heavy Profile Pistol-Length 1-8 Twist 1/2 x 28 Thread 4150 CrMov Black

$79.99 $128.52

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Optics Planet Updated Oct 26, 2026

15% OFF

Diamondback Firearms DBAM29 Pistol Magazine 9mm Luger 17 Round Black/Flat Dark Earth 1 Pack Steel

$39.59 $46.34

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Optics Planet Updated Oct 26, 2026

Diamondback Firearms DBAM29 Pistol Magazine 9mm 17 Round 1 Pack

$25.99 $26.00

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Optics Planet Updated Oct 26, 2026

27% OFF

Diamondback Firearms OEM Replacement AR Barrel 7in 7.62x39mm Pistol-Length 1-9.50 Twist Black Nitride 4150 Chrome Moly Vanadium Steel

$79.99 $109.99

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Optics Planet Updated Oct 26, 2026

7% OFF

Diamondback Firearms OEM Replacement AR Barrel 10in 9mm Luger 1-9.84in Twist Black Nitride 4150 Chrome Moly Vanadium Steel

$79.99 $86.23

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Sportsman's Warehouse Updated Oct 26, 2026

Diamondback Firearms Diamondback DB 5.56mm NATO Vanadium Steel Pistol Barrel - 5.5in - Black Nitride - 1/2 x 28

$88.00

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms DB15 AR15 Multi-Caliber Stripped Lower Receiver | Black

$73.81

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms Barrel 9mm Luger 10" Black Nitride

$66.00

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms OEM 9mm Finger Extension SS 17rd Magazine

$24.15

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms DB9 9mm 6rd Black Magazine

$19.55

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms OEM 9mm 6rd DB9G4 Blued Magazine

$19.98

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms DB380 Magazine 380 ACP 6rd Flat Bottom

$19.55

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms OEM 9mm Flat Base SS 12rd Magazine

$20.70

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The Real Grit Updated Oct 26, 2026

20% OFF

Diamondback Firearms DB380 6 Round 380 ACP Magazine - Blued

$20.00 $25.05

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The Real Grit Updated Oct 26, 2026

22% OFF

Diamondback Firearms DB380 6 Round 380 ACP Magazine with Finger Extension - Blued

$20.00 $25.55

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The Real Grit Updated Oct 26, 2026

20% OFF

Diamondback Firearms DB9 Gen 2 6 Round 9mm Magazine - Blued

$20.00 $25.05

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The Real Grit Updated Oct 26, 2026

20% OFF

Diamondback Firearms DBAM29 17 Round 9mm Magazine - Black/Flat Dark Earth

$24.00 $30.18

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The Real Grit Updated Oct 26, 2026

18% OFF

Diamondback Firearms DBAM29 12 Round 9mm Magazine - Stainless

$22.00 $26.84

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Optics Planet Updated Oct 26, 2026

37% OFF

Diamondback Firearms DB9 Gen 2 Pistol Magazine 9mm Luger 6 Round Diamondback DB9G4 Blued 1 Pack Steel

$26.99 $42.99

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms Barrel 5.56x45mm 5.5" Pistol Length Black Nitride

$80.50

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms Barrel 7.62x39mm 7" Black Nitride

$80.50

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms QPQ 223 Wylde 18" Black Stainless Steel Barrel

$87.40

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms Barrel 5.56x45mm 7" Pistol Length Black Nitride

$78.20

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms Barrel M4 Contour 5.56x45mm 16 Black Nitride

$94.30

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms Barrel 5.56x45mm 16 Black Nitride Chrome Moly

$94.30

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms Barrel 300 Blackout 16 Pistol Length Black Nitride

$103.50

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms Barrel 6.5 Grendel 18 Mid Length Black Nitride

$124.20

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms Barrel 308 Win 18" Rifle Length Black Nitride

$125.35

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms Barrel 308 Win 16 Mid Length Black Nitride

$131.10

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms Barrel 308 Win 13.5" Mid Length Black Nitride

$128.80

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KYGUNCO Updated Oct 26, 2026

Diamondback Firearms Barrel 6.5 Creedmoor 20" Rifle Length Fluted SS

$165.60

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MidwayUSA Updated Oct 26, 2026

Diamondback Firearms Diamondback DB9 Gen IV Magazine 9mm 6 Round Finger Extension Plate

$21.00

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MidwayUSA Updated Oct 26, 2026

Diamondback Firearms Diamondback DB9 Gen IV Magazine 9mm 6 Round Flat Bottom Plate

$21.00

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MidwayUSA Updated Oct 26, 2026

Diamondback Firearms Diamondback DB380 Magazine 380 ACP 6 Round Finger Extension Plate

$21.00

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MidwayUSA Updated Oct 26, 2026

10% OFF

Diamondback Firearms Diamondback DB AM2 Magazine 9mm 12 Round Flat Bottom Plate Black

$20.66 $23.00

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MidwayUSA Updated Oct 26, 2026

10% OFF

Diamondback Firearms Diamondback DB AM2 Magazine 9mm 17 Round Finger Extension Plate Flat Dark Earth

$23.33 $26.00

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MidwayUSA Updated Oct 26, 2026

10% OFF

Diamondback Firearms Diamondback DB AM2 Magazine 9mm 17 Round Finger Extension Plate Black

$23.33 $26.00

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MidwayUSA Updated Oct 26, 2026

Diamondback Firearms Diamondback AR-15 Barrel 5.56x45mm NATO 16" Medium Contour Carbine Length 1:8" Twist Black

$103.00

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MidwayUSA Updated Oct 26, 2026

8% OFF

Diamondback Firearms Diamondback AR-15 Barrel 5.56x45mm NATO 16" Medium Contour Mid-Length 1:8" Twist Black

$94.65 $103.00

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MidwayUSA Updated Oct 26, 2026

Diamondback Firearms Diamondback AR-15 Barrel 5.56x45mm NATO 16" Medium Contour Carbine Length1:9" Twist Black

$103.00

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MidwayUSA Updated Oct 26, 2026

Diamondback Firearms Diamondback AR-15 Barrel 223 Wylde 18" Heavy Contour 1:7" Twist Black

$109.00

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MidwayUSA Updated Oct 26, 2026

Diamondback Firearms Diamondback AR-10 Barrel 308 Winchester 18" Medium Contour 1:10" Twist Black

$136.00

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MidwayUSA Updated Oct 26, 2026

Diamondback Firearms Diamondback AR-10 Barrel 308 Winchester 24" Medium Contour 1:10" Twist Black

$180.00

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Optics Planet Updated Oct 26, 2026

3% OFF

Diamondback Firearms Diamondback 223 Wylde 18 Black QPQ Stainless Steel Barrel

$105.99 $109.00

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Shooting Surplus Updated Oct 26, 2026

Diamondback Firearms Diamondback 9mm Gen 4 Steel Magazine Fingerplate Extension Fits DB9 DB9G4

$20.64

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Shooting Surplus Updated Oct 26, 2026

Diamondback Firearms Diamondback DB10 308 Winchester 20" Barrel 20 Round Finish Anodized 7075-T6

$933.26

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