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.

PWS

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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...

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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...

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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...

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$19.99

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PWS Maroon Design - Shirt

Get ready to experience ultimate comfort and showcase your PWS pride with our Maroon logo t-shirt. Crafted for a soft feel and a comfortable fit, this short-sleeved tee is perfect for everyday wear...

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$19.99 - $29.95

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MK118 MOD 2-M .223 Wylde

Engineered to deliver unmatched performance, the MK118 MOD 2-M in .223 Wylde blends precision, reliability, and modularity into a purpose-driven rifle platform. Utilizing the proven PWS Long Stroke...

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$2,299.95

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UXR Rifle, ELITE, .223 Wylde, 16" barrel, FRC Comp

Introducing the PWS UXR – a groundbreaking advancement in contemporary firearms. A true catalyst for change, the UXR seamlessly marries innovation with adaptability, echoing the wisdom of...

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$3,199.99

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UXR Rifle, ELITE, 300BLK 14.5" barrel, FRC Comp pin/weld

Introducing the PWS UXR in 300 BLK – a groundbreaking advancement in contemporary firearms. A true catalyst for change, the UXR seamlessly marries innovation with adaptability, echoing the...

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$3,199.99

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.223 Wylde Bolt

MK1 Bolt- .223 wylde, .300 blackout Includes Bolt Spring Material: 9310 Tool Steel

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$80.00

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FSC Compensator- 30 (5/8x24)

The patented FSC compensator was designed to be an effective compensator for shooters in all situations. Offering recoil reduction as a primary function, and flash suppression as a secondary...

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$49.99

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MK1 MOD 2-M Complete Rifle Lower

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...

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$679.95

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FRC 2-port 308 Compensator Tapered - (5/8-24)

Elevate your shooting experience with the cutting-edge PWS FRC compensator, specifically designed for tapered rifle barrels and serving as a suppressor host for the Rearden Atlas suppressor mounting...

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$99.95

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MK1 MOD 1-M M-LOK Replacement Rail- 114

The MK1 MOD 1-M Replacement rail is for owners of PWS MK1 MOD 1 owners to replace their current KeyMod rail with MLOK®. Includes mounting hardware and instructions. Please note, these handguards...

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$149.95

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MK1 MOD 2-M PicLok Replacement Rail- 111

The MK1 MOD 2-M Replacement rail is for owners of PWS MK1 MOD 2 owners to replace their current PicMod rail with PicLok. Includes mounting hardware and instructions. Please note, these handguards...

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$174.95

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1913 UXR Picatinny Adapter

If you want to run a different stock on the UXR, this adapter integrates with the 6 degree angle built into the receiver. The adapter provides a 4-slot 1913 (Picatinny) rail to mount any stock with...

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$69.95

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Piston Head

Bolt Carrier Piston Head

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$33.00

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FRC 2-port 223 Compensator Flat - (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...

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$99.95

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