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.

Shop All - Page 1 - Primary Weapons Systems

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Alpha LT Rifle - Kodiak Brown

The ALPHA LT is a unique PWS Long Stroke Piston platform, combining features from the limited release ALPHA with the MK1 MOD 2-M lower as a foundation. Renowned for its reliability and reduced fouling, the ALPHA LT utilizes an exposed 3-position...

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PWS Low Decibel Club Shirt

Civilized shooters always bring suppressors to the range. To shoot unsuppressed - especially on a crowded firing line - is just poor form. If you concur, you are invited to join the Low Decibel Club. 4.7 oz, 100% carded, pre-shrunk cotton Regular...

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MK216 MOD 2-M Rifle .308 WIN

NOW SHIPPING TO DEALERS! The MK216 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...

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MK118 MOD 2-M Upper .223 WYLDE

The MK118 MOD 2-M Upper 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...

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PWS MagBlock

Remember, nobody outranks safety! The PWS Magblock was designed to be a hi-viz empty chamber designator, capable of being inserted into an AR15 patterned magwell to show the status of a rifle. The MagBlock exists as an extra level of safety while...

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MK118 MOD 1-M Upper .223 WYLDE

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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MK111 MOD 2-M Upper 7.62x39

The MK111 MOD 2-M Upper 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...

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BRN-180 GEN3 Upper Receiver, 223 WYLDE 13.9" (BLEM)

The BRN-180® GEN 3 upper receiver brings the trusted reliability of the original design into a new era, with enhanced ergonomics, greater durability and field-ready features developed directly from user feedback. Everything that made the...

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BRN-180 GEN3 Upper Receiver, 223 WYLDE 16" (BLEM)

The BRN-180® GEN 3 upper receiver brings the trusted reliability of the original design into a new era, with enhanced ergonomics, greater durability and field-ready features developed directly from user feedback. Everything that made the...

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BRN-180 GEN3 Upper Receiver, 300BLK 9" (BLEM)

The BRN-180® GEN 3 upper receiver brings the trusted reliability of the original design into a new era, with enhanced ergonomics, greater durability and field-ready features developed directly from user feedback. Everything that made the...

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PWS Enhanced AR-15/AR-10 Pistol Grip

The PWS Enhanced AR-15/AR-10 Pistol Grip is designed to enhance the interface between the shooter and the weapon platform. The vertical angle of the grip and the enhanced beavertail allow for a higher grip and better reach of the fire controls. This...

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$9.99

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PWS HOT RANGE Sun Shirt - Hoodie

Meet our new performance HOT RANGE Sun Hoodie. This hooded long-sleeve shirt is perfect for those sunny days at the range, in the field, or on the water, as it provides UPF 50+ protection and moisture management. Don't let that summer sun hold you...

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$39.95

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Enhanced A5 Body Buffer, 5.35 oz

Enhanced A5 Buffer The Enhanced A5 Buffer is on of the most beneficial upgrades to the AR platform. When used in conjuction with an A5 length buffer tube, the A5 buffer increased reliability, accuracy, and performance of AR style firearms... especially...

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MK1 MOD 2-M Stripped Lower Receiver

Experience shooting versatility with the PWS MK1 MOD 2-M Multi-Caliber Lower Receiver. Crafted from robust 7075-T651 Forged Aluminum and finished with Mil 8625 Type lll Class 2 hard coat anodize, this lower empowers shooters to customize their...

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$369.95

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PWS UXR Design - Shirt

Elevate your style and show your support for Primary Weapons Systems with our UXR Logo Shirt in black. Crafted for both comfort and sleekness, this short-sleeved tee offers a soft feel and a perfect fit for any occasion. Whether you're hitting the range,...

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$19.99

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PWS Racing Design - Shirt

Precision meets speed. This PWS shirt features our stylized racing logo over a topographical backdrop—representing the rugged terrain we’re built for and the performance we’re known for. Designed for comfort and durability, it’s...

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