Primary Weapon Systems: Compare Prices & Find the Best Deals

Primary Arms Updated Aug 11, 2026

16% OFF

Primary Weapons Systems PWS MOD2 Carbine Buffer - H4 6.8 oz - Open Box

$84.96 $101.30

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GrabAGun Updated Aug 10, 2026

6% OFF

Primary Weapons Systems A5 Enhanced Buffer Tube

$74.95 $79.95

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GrabAGun Updated Aug 10, 2026

39% OFF

Primary Weapons Systems BDE PUB-XL Mount HUB 1.375x24

$58.69 $95.95

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GrabAGun Updated Aug 10, 2026

10% OFF

Primary Weapons Systems Flash Suppressing Compensator MOD 2 7.62 X 39 M14x1 LH

$89.95 $99.95

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GrabAGun Updated Aug 10, 2026

10% OFF

Primary Weapons Systems PWS FRC 5/8X24 COMP SPRSSR READY BLK

$89.95 $99.95

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GrabAGun Updated Aug 10, 2026

10% OFF

Primary Weapons Systems FRC 3-Port Compensator 5/8x24

$89.95 $99.95

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GrabAGun Updated Aug 10, 2026

25% OFF

Primary Weapons Systems Enhanced Buffer Carbine H2 AR-10

$89.95 $119.95

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GrabAGun Updated Aug 10, 2026

24% OFF

Primary Weapons Systems A5 Enhanced Buffer Tube Kit

$129.99 $169.99

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GrabAGun Updated Aug 10, 2026

10% OFF

Primary Weapons Systems BDE 556 5.56 1/2x28 HUB

$899.95 $999.95

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GrabAGun Updated Aug 10, 2026

5% OFF

Primary Weapons Systems BDE 762 .30 Caliber 5/8x24 HUB Mount

$999.95 $1049.95

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GrabAGun Updated Aug 10, 2026

4% OFF

Primary Weapons Systems BDE 36 Ti .36 Caliber 5/8x24 HUB Mount

$1249.95 $1299.95

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GrabAGun Updated Aug 10, 2026

6% OFF

Primary Weapons Systems MK114 Mod 2-M Upper .223 Wylde 14.5 Barrel

$1309.99 $1399.95

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GrabAGun Updated Aug 10, 2026

4% OFF

Primary Weapons Systems MOD 2-M SBR .223 Wylde 11.8 Barrel 30-Rounds

$2209.99 $2309.95

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GrabAGun Updated Aug 10, 2026

15% OFF

Primary Weapons Systems J-TAC 47 Compensator 7.62 X 39 M14x1 LH

$49.26 $57.95

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GrabAGun Updated Aug 10, 2026

11% OFF

Primary Weapons Systems Enhanced A5 Buffer H2

$66.49 $74.99

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GrabAGun Updated Aug 10, 2026

19% OFF

Primary Weapons Systems AR-15 Enhanced Buffer Carbine H2

$40.39 $49.95

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Guns.com Updated Aug 10, 2026

10% OFF

Primary Weapons Systems (Pws) 556 K BDE

$628.99 $699.95

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Guns.com Updated Aug 10, 2026

36% OFF

Primary Weapons Systems (Pws) BDE36-TI

$832.99 $1299.95

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Angstadt Arms Updated Mar 25, 2026

11% OFF

Primary Weapons Systems PWS Ratchet Lock Castle Nut and Endplate Set

$39.95 $44.95

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems MK116 Compound .223 Wylde 16.10", Black

$1870.99 $2058.99

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Guns.com Updated Aug 10, 2026

15% OFF

Primary Weapons Systems (Pws) MK1

$1111.49 $1299.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems MK114 Mod 1-M 14.50" Upper .223 Wylde 1:8 M-LOK Rail Mid-Length, Black

$1180.99 $1299.99

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The Real Grit Updated Jan 04, 2026

12% OFF

Primary Weapons Systems MK116 Mod 1 16.1" 30 Round 223 Remington/5.56 NATO AR15 Semi Auto Rifle

$1544.95 $1758.86

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The Real Grit Updated Jan 04, 2026

12% OFF

Primary Weapons Systems MK116 Mod 2 16" 30 Round 223 Remington/5.56 NATO AR15 Semi Auto Rifle

$1949.95 $2219.94

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The Real Grit Updated Jan 04, 2026

12% OFF

Primary Weapons Systems UXR Elite 14.50" 30 Round 223 Remington/5.56 NATO Semi Auto Rifle

$2499.95 $2846.16

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The Real Grit Updated Jan 04, 2026

12% OFF

Primary Weapons Systems UXR Elite 16" 20 Round 308 Winchester Semi Auto Rifle

$2499.95 $2846.16

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Palmetto State Armory Updated Aug 10, 2026

10% OFF

Primary Weapons Systems FRC 3-Port Tapered Compensator 1/2-28, Black

$71.99 $79.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems MK114 Mod 2-M 14.50" Upper .223 Wylde 1:8 M-LOK Rail Mid-Length, Black

$1519.99 $1671.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems UXR .223 Wylde 16.10" AR Rifle, Black - U2E16RA11-1F

$2499.99 $2749.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems MK114 Mod 2-M 6mm ARC 16", Black

$1999.99 $2199.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems MK116 Mod 2-M 16.10" Upper .223 Wylde 1:8 M-LOK Rail Mid-Length, Black

$1368.99 $1505.99

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Palmetto State Armory Updated Aug 10, 2026

10% OFF

Primary Weapons Systems MK116 Mod 1-M 16.10" Upper .223 Wylde 1:8 M-LOK Rail Mid-Length, Black

$1129.99 $1254.99

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GrabAGun Updated Aug 10, 2026

14% OFF

Primary Weapons Systems BDE 9mm Titanium Modular

$599.95 $699.95

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GrabAGun Updated Aug 10, 2026

9% OFF

Primary Weapons Systems BDE 762Ti 7.62mm

$999.95 $1099.95

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GrabAGun Updated Aug 10, 2026

6% OFF

Primary Weapons Systems UXR Elite .223 Wylde 14.5 Barrel 30-Rounds

$2499.95 $2650.00

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GrabAGun Updated Aug 10, 2026

5% OFF

Primary Weapons Systems MK114 Mod 2-M 6mm ARC 14.5 P&W Barrel 15-Rounds

$1999.95 $2099.95

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GrabAGun Updated Aug 10, 2026

14% OFF

Primary Weapons Systems Mod 2-M 5.56

$299.95 $349.95

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GrabAGun Updated Aug 10, 2026

11% OFF

Primary Weapons Systems BDE 22 1/2x28 TPI

$399.95 $449.95

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GrabAGun Updated Aug 10, 2026

4% OFF

Primary Weapons Systems MK1 Mod2-M Upper .223 Wylde 11.85 Barrel

$1299.95 $1349.95

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Optics Planet Updated Aug 10, 2026

12% OFF

Primary Weapons Systems .578x28 Piston Anodized Finish Black

$76.95 $87.00

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Optics Planet Updated Aug 10, 2026

14% OFF

Primary Weapons Systems FRC Compensator 223 Remington/556NATO Suppressor Mount Black Fits 1/2X28

$84.96 $99.00

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Optics Planet Updated Aug 10, 2026

19% OFF

Primary Weapons Systems UXR MagWell Assembly For Medium Frame 308 Winchester AR10 Black

$129.95 $159.95

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Optics Planet Updated Aug 10, 2026

11% OFF

Primary Weapons Systems Mount Fits 1/2X28 Anodized Finish Black

$69.95 $79.00

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Optics Planet Updated Aug 10, 2026

12% OFF

Primary Weapons Systems Piston Fits 1/2X28 Anodized Finish Black

$76.95 $87.00

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Optics Planet Updated Aug 10, 2026

35% OFF

Primary Weapons Systems Mod 2 Bolt Catch AR-15 Black

$29.99 $45.83

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Optics Planet Updated Aug 10, 2026

10% OFF

Primary Weapons Systems BDE PUB-A Mount Fits HUB Suppressors Black 1.125-28 Thread Pitch

$85.79 $95.00

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Optics Planet Updated Aug 10, 2026

18% OFF

Primary Weapons Systems Ratchet Lock End Plate & Castle Nut Set Black AR-15

$40.99 $49.95

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Optics Planet Updated Aug 10, 2026

25% OFF

Primary Weapons Systems PWS Enhanced 308 Short Recoil Buffer MOD 2 H2 Weight Black AR-15

$89.95 $119.95

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Optics Planet Updated Aug 10, 2026

34% OFF

Primary Weapons Systems PWS Enhanced Suppressor Weight Recoil Buffer MOD 2 Black AR-15

$125.97 $189.95

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Optics Planet Updated Aug 10, 2026

7% OFF

Primary Weapons Systems MK111 MOD1-M Upper Receiver .223 Wylde 11.85in bbl Black

$1129.95 $1209.95

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Optics Planet Updated Aug 10, 2026

9% OFF

Primary Weapons Systems MK111 MOD2-M Upper Receiver .223 Wylde 11.85 inch Barrel Matte Black

$1371.95 $1499.95

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Optics Planet Updated Aug 10, 2026

8% OFF

Primary Weapons Systems UXR 223Wylde/300Blackout AR-15 Magwell Assembly Black 0

$119.99 $129.95

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Optics Planet Updated Aug 10, 2026

23% OFF

Primary Weapons Systems UXR .300 Blackout 14.50'' Barrel Conversion Kit Black 0

$499.95 $649.99

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Optics Planet Updated Aug 10, 2026

9% OFF

Primary Weapons Systems Enhanced Pistol Buffer Tube w/ Ratchet Lock Castle Nut & Endplate Carbine Length Black

$99.95 $109.95

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Guns.com Updated Aug 10, 2026

19% OFF

Primary Weapons Systems (Pws) MK1

$2429.99 $2999.99

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Guns.com Updated Aug 10, 2026

15% OFF

Primary Weapons Systems (Pws) UXR ELITE

$2249.99 $2650.00

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Guns.com Updated Aug 10, 2026

40% OFF

Primary Weapons Systems (Pws) PRIMARY WEAPONS SYSTEMS UXR ELITE

$1600.99 $2650.00

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Palmetto State Armory Updated Aug 10, 2026

10% OFF

Primary Weapons Systems MK116 Mod 2-M 16.10" Upper .223 Wylde 1:8 M-LOK Rail, Black

$1399.99 $1553.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems MK111 Mod 2-M 11.85" Railed Upper .223 Wylde 1:8 Carbine-Length no BCG w/CH

$1429.99 $1572.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems FRC Triad Flat Compensator 1/2-28, Black

$68.99 $75.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems MK1 Alpha LT 14.50" Railed Upper .223 Wylde 1:8 Mid-Length no BCG w/CH

$1260.99 $1387.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems MK114 Mod 2-M .223 Wylde/5.56x45mm 16", Black

$2084.99 $2293.99

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Palmetto State Armory Updated Aug 10, 2026

10% OFF

Primary Weapons Systems Thread Mount 1/2-28, Black

$59.99 $66.99

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Palmetto State Armory Updated Aug 10, 2026

10% OFF

Primary Weapons Systems MK116 Mod 2-M .223 Wylde/5.56x45mm 16.10", Black

$2199.99 $2441.99

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Palmetto State Armory Updated Aug 10, 2026

11% OFF

Primary Weapons Systems EBT Mod 2 End Plate and Ratchet Lock Castle Nut, Black

$39.99 $44.99

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Palmetto State Armory Updated Aug 10, 2026

10% OFF

Primary Weapons Systems Thread Mount 5/8-24, Black

$56.99 $62.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems UXR Elite Conversion Kit .300 AAC Blackout Fits PWS UXR, Black

$517.99 $569.99

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Palmetto State Armory Updated Aug 10, 2026

10% OFF

Primary Weapons Systems UXR Elite Conversion Kit .223 Wylde Fits PWS UXR, Black

$534.99 $593.99

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Palmetto State Armory Updated Aug 10, 2026

10% OFF

Primary Weapons Systems FRC 2-Port Flat Compensator 5/8-24

$89.99 $99.99

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Palmetto State Armory Updated Aug 10, 2026

10% OFF

Primary Weapons Systems Piston 37/64-28, Black

$65.99 $72.99

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Palmetto State Armory Updated Aug 10, 2026

10% OFF

Primary Weapons Systems Piston 1/2-28, Black

$63.99 $70.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems UXR Elite .223 Wylde Semi-Auto, Black

$2388.99 $2627.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems UXR Elite .223 Wylde Semi-Auto, Black

$2849.99 $3134.99

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Palmetto State Armory Updated Aug 10, 2026

9% OFF

Primary Weapons Systems UXR Magwell Assembly, Black

$114.99 $126.99

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Palmetto State Armory Updated Aug 10, 2026

10% OFF

Primary Weapons Systems UXR Magwell Assembly, Black

$129.99 $144.99

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