Primary Weapons Systems: Compare Prices & Find the Best Deals

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Palmetto State Armory Updated Nov 08, 2026

9% OFF

Primary Weapons Systems H4 Enhanced Carbine Buffer, Black

$173.99 $191.99

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Optics Planet Updated Oct 31, 2026

15% OFF

Primary Weapons Systems FSC556 MOD 2 FSC Series Flash Suppressing Compensator Muzzle Device .223 Black 1/2x28 threads

$84.96 $99.95

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Optics Planet Updated Oct 31, 2026

13% OFF

Primary Weapons Systems PWS FRC COMP FLAT 3PORT 223 1/2X28

$84.95 $97.69

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Optics Planet Updated Oct 31, 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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Optics Planet Updated Oct 31, 2026

7% OFF

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

$1399.95 $1499.95

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Optics Planet Updated Oct 31, 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 Oct 31, 2026

14% OFF

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

$84.95 $99.00

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Optics Planet Updated Oct 31, 2026

13% OFF

Primary Weapons Systems .578x28 Piston Anodized Finish Black

$76.95 $87.95

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GrabAGun Updated Nov 08, 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 Nov 08, 2026

6% OFF

Primary Weapons Systems UXR Elite .223 Wylde 16 Barrel 30-Rounds

$2499.95 $2650.00

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TLO Outdoors Updated Nov 08, 2026

13% OFF

Primary Weapons Systems MOD 2 FSC556 Flash Suppressing Compensator 1/2x28 .223/5.56 Black 3G2FSC12A-1F

$86.98 $99.95

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TLO Outdoors Updated Nov 08, 2026

13% OFF

Primary Weapons Systems FRC Suppressor-Ready 2-Port Compensator, 1/2x28 Black FRC-F-2P-1-2X28

$86.98 $99.95

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TLO Outdoors Updated Nov 01, 2026

9% OFF

Primary Weapons Systems Enhanced MOD 2 H3 Carbine Buffer, 4140 Steel Fluted Body EBUFFER-H3

$99.98 $109.95

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GrabAGun Updated Nov 08, 2026

6% OFF

Primary Weapons Systems A5 Enhanced Buffer Tube

$74.95 $79.95

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GrabAGun Updated Nov 08, 2026

10% OFF

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

$89.95 $99.95

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GrabAGun Updated Nov 08, 2026

10% OFF

Primary Weapons Systems FRC Flat 3-Port Compensator 1/2x28

$89.95 $99.95

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GrabAGun Updated Nov 08, 2026

10% OFF

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

$89.95 $99.95

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GrabAGun Updated Nov 08, 2026

10% OFF

Primary Weapons Systems FRC Flat 3-Port Compensator 5.56 1/2x28

$89.95 $99.95

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GrabAGun Updated Nov 08, 2026

10% OFF

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

$89.95 $99.95

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GrabAGun Updated Nov 08, 2026

18% OFF

Primary Weapons Systems A5 Enhanced Buffer Tube Kit

$139.99 $169.99

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TLO Outdoors Updated Nov 08, 2026

12% OFF

Primary Weapons Systems MOD 2 Enhanced Steel Carbine H2 Buffer 4.5 oz, Fluted, EBUFFER-H2

$43.98 $49.95

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GrabAGun Updated Nov 08, 2026

6% OFF

Primary Weapons Systems UXR .300 AAC Blackout 14.5 P&W Barrel 30-Rounds

$2999.95 $3199.99

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GrabAGun Updated Nov 08, 2026

6% OFF

Primary Weapons Systems UXR .223 Wylde 14.5 P&W Barrel 30-Rounds

$2999.95 $3199.99

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GrabAGun Updated Nov 08, 2026

5% OFF

Primary Weapons Systems MK1 Mod 2-M 5.56 16 P&W Barrel 30-Rounds

$2199.95 $2309.95

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GrabAGun Updated Nov 08, 2026

10% OFF

Primary Weapons Systems FRC 2-Port Compensator 5/8x24

$89.95 $99.95

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GrabAGun Updated Nov 01, 2026

13% OFF

Primary Weapons Systems Mount Threaded Barrels for 1/2x28

$69.95 $79.95

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Where to buy Primary Weapons Systems gun parts

Shooting Surplus 27 in stock
Palmetto State Armory 17 in stock
GrabAGun 16 in stock
Optics Planet 7 in stock
TLO Outdoors 4 in stock
GritrSports 1 in stock
BOTACH 1 in stock
Primary Arms 1 in stock

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Where to buy Primary Weapons Systems gun parts