Primary Weapons Systems is a federally-licensed firearms manufacturer in Boise, Idaho (est. 2007). They produce AR-15 (MK1) and AR-10 (MK2) rifles, uppers, muzzle devices, suppressors, handguards, and buffer systems using in-house CNC machining.

What is the difference between the MK1 MOD 1-M and MOD 2-M?

MOD 1-M has a KeyMod (PicMod) handguard. MOD 2-M has M-LOK and a fully ambidextrous lower. Both use the PWS long-stroke piston with a 3-setting adjustable gas regulator.

How do I identify my PWS model?

MOD 0: quad-rail (pre-mid-2015). MOD 1: KeyMod with forward assist. MOD 1-P: updated KeyMod (2016). MOD 2-M: M-LOK with ambi controls. Model and serial are on the lower receiver.

What calibers does PWS offer?

MK1: .223 Wylde, .300 BLK, 7.62x39. MK2: .308 Win / 7.62 NATO, 6.5 Creedmoor. PCC: 9mm.

What does the PWS long-stroke piston system do?

It cycles the bolt carrier via a full-length operating rod and gas piston, keeping carbon and heat out of the receiver. The 3-setting gas regulator supports standard, suppressed, and adverse-condition use.

What buffer weight should I use with a PWS upper?

H2 buffers are recommended. A standard carbine buffer can cause over-gassing. Use the H2 Enhanced Buffer (4.4 oz) for standard use or H2 Suppressor Weight Buffer (4.5 oz) for suppressed fire.

What is the difference between PWS buffer tubes?

Enhanced Buffer Tube: 6-position for stocks or braces. Pistol Buffer Tube: fixed-length for AR pistols. Modified Enhanced Buffer Tube: Law Tactical folding adapter compatible. All include the Ratchet Lock Castle Nut and Endplate Set.

A 1/2x28 flash suppressing compensator for .223/5.56 that reduces both muzzle flash and rise. BATFE has confirmed it is not a suppressor.

Does PWS make muzzle devices for AK and HK rifles?

Yes. FSC47 MOD 2 and JTAC47 are 14x1 LH for AK-47. FSC HK is 15x1 for HK91/G3. CQB74 is 24x1.5mm for .308 HK platforms.

What suppressors does PWS make?

BDE 22 (.22 LR), BDE 556 (5.56), BDE 9 (9mm), BDE 762 (.308/7.62), BDE 338 (.338/8.6), BDE 45 (.45). All modular and serviceable. NFA - Form 4 and $200 tax stamp required.

What is the T3 Summit?

A straight-pull biathlon toggle bolt action for Ruger 10/22-compatible platforms in .22 LR. Available as a complete rifle or bare action with P3 extended magazine release.

Does PWS offer LE or military discounts?

Yes. Use the contact form at primaryweapons.com/contact and select LE/MIL Discount as the subject.

How do I find an authorized PWS dealer?

Use the dealer locator at primaryweapons.com/locator/partnership/dealerlist. To become a dealer visit primaryweapons.com/locator/partnership/index.

Where are PWS product manuals?

Available at primaryweapons.com/pws-manuals. Contact customer service to request a hard copy.

How do I submit a warranty or RMA?

Submit at primaryweapons.com/warrantyrequest. Warranty info at primaryweapons.com/pws-warranty.

What is the expected barrel life of a PWS rifle?

.223 Wylde: 20,000-30,000 rounds. .300 BLK: 15,000-20,000. 7.62x39: 10,000-15,000. Varies with suppressor use, maintenance, and ammo.

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MK1 MOD 1-M/ MK1 PRO Complete Rifle Lower

Experience superior performance with the PWS MK1 MOD 1 Multi-Caliber Lower Receiver. Built from rugged 7075-T651 forged aluminum and finished with Mil 8625 Type III Class 2 hard coat anodize, this lower receiver offers AR-15 compatibility with lasting...

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$679.95

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MK114 MOD 2 Rifle 6MM ARC (Pinned)

The MK114 MOD 2-M is built for long-range precision and versatility, chambered in the highly efficient 6MM ARC. Offering flat trajectories, reduced recoil, and exceptional energy retention, this rifle is perfect for precision shooters, hunters, and...

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MK118 MOD 1-M Upper 6MM ARC

The MK118 MOD 1 Upper delivers unmatched precision and versatility, now chambered in the highly efficient 6MM ARC. Designed to provide flat trajectories, reduced recoil, and exceptional energy retention, this upper is perfect for precision shooters,...

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$1,209.95

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BDE36-TI Suppressor

The revolutionary suppressor from Primary Weapons Systems. Introducing the PWS BDE® Suppressor in 36 caliber, perfect for large caliber hunters and shooters with 338 magnum cartridges as well as 8.6 Blackout enjoyers. Renowned for their excellence in...

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$1,299.95

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MK114 MOD 1-M Upper .223 Wylde (NO COMPENSATOR)

The MK114 MOD 1-M Upper is equipped with the renowned PWS PWS long-stroke piston system, maintaining the reliability that PWS owners have come to trust. This line features a free-float MLOK handguard, forward assist controls, and a design closer to...

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1/2x28 Piston

The PWS Suppressor Piston is meticulously crafted with 17-4 stainless steel to guarantee extensive durability and a prolonged life expectancy. Designed with versatility in mind, these pistons can be effortlessly swapped out to...

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$87.95

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Enhanced Buffer Tube with Ratchet Lock Castlenut and Endplate

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Introducing the PWS Enhanced Buffer Tube with Ratchet Lock Castle Nut & Endplate—engineered for superior reliability, durability, and ease of installation. Weighing just 4.3 oz, this buffer tube is crafted from impact extruded 7075 aluminum,...

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$109.95

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BDE PUB Mount

The PWS PUB Mount is the ultimate solution for HUB-compatible suppressor users, offering seamless attachment to PWS FRC compensators, Q LLC Cherry Bomb, and Rearden Manufacturing muzzle devices. Designed with precision and reliability in mind, the PUB...

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$95.95

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FRC 3-port 223 Compensator Flat, 13.8 - (1/2-28)

Elevate your shooting experience with the cutting-edge PWS 3-Port FRC square shoulder compensator, specifically designed to serve as a suppressor host for the Rearden Atlas suppressor mounting system—compatible with popular suppressors like...

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$99.95

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MK116 MOD 1-M Upper 7.62x39

The MK116 MOD 1-M Upper is equipped with the renowned PWS PWS long-stroke piston system, maintaining the reliability that PWS owners have come to trust. This line features a free-float MLOK handguard, forward assist controls, and a design closer to...

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MK114 MOD 2-M Upper 6MM ARC

The MK114 MOD 2-M Upper delivers unmatched precision and versatility, now chambered in the highly efficient 6MM ARC. Designed to provide flat trajectories, reduced recoil, and exceptional energy retention, this upper is perfect for precision...

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$1,499.95

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1/2x36 Suppressor Thread Mount

This PWS Pistol Suppressor Thread Mount offers 1/2x36 threading for broad compatibility with popular pistol models.

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$79.95

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MK114 MOD 2-M Rifle .223 Wylde (Pinned)

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The MK114 MOD 2-M operates on the highly acclaimed PWS Long Stroke Piston System, renowned for its reliability and reduced fouling. The inclusion of a 3-setting Adjustable Gas System allows users to fine-tune gas flow, ensuring optimal performance in...

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