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.

AR Series - Complete Rifles/Pistols - AR-15 | MK1 Rifles

AR-15 | MK1 Rifles

All (10)

MK1 MOD 2 Rifles (7)

MK1 MOD 2 Pistols (0)

MK1 Compound Rifles/Pistols (3)

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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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MK111 Compound .223 Wylde (SBR)

The MK111 Compound SBR combines the best of both worlds—featuring the robust Mod 1 upper with a full M-LOK™ handguard and forward assist, paired with the refined and ergonomic Mod 2 ambidextrous lower. This hybrid design offers the modularity...

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MK118 MOD 2 Rifle 6MM ARC

The MK118 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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MK116 Compound Rifle .223 Wylde

(1)

The MK116 Compound combines the best of both worlds—featuring the robust Mod 1 upper with a full M-LOK™ handguard and forward assist, paired with the refined and ergonomic Mod 2 ambidextrous lower. This hybrid design offers the modularity and...

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MK116 MOD 2-M Rifle .223 Wylde

(5)

The MK116 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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MK111 MOD 2-M Rifle .223 Wylde (SBR)

The MK111 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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MK111 Compound Rifle, .223 Wylde, Kodiak/FDE (NFA Item)

The MK111 Compound combines the best of both worlds—featuring the robust Mod 1 upper with a full M-LOK™ handguard and forward assist, paired with the refined and ergonomic Mod 2 ambidextrous lower. This hybrid design offers the modularity and...

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MK114 MOD 2-M Rifle (.223 Wylde) Kodiak Brown

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...

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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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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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