The MK1 MOD 1-M line features the PWS long stroke piston system. Internally, this line offers the tried and true system that PWS owners have grown to know and love. Featuring a free-float MLOK handguard, forward assist controls, and a more true to mil-spec design, the MK1 MOD 1-M line is a go-to for not only civilians, but also Law Enforcement. With the fully forged upper and lower receivers, the MK1 MOD 1-M is a no-nonsense tool for when you need a high value option that is relentless and unstoppable.

The MK114 MOD 1-M does not have a pinned muzzle device. ALL NFA RULES APPLY. We also sell the MK114 MOD 1-M with a pinned compensator that is NFA- compliant.

MK114 MOD 1-M Specs:

Caliber: .223

Weight: 4 lb. 6 oz.

Overall Length: 21.75"

Barrel: 14.5" 41V50 Steel

Piston System: Mid-length

Velocity: 2921 ft/sec

MK114 MOD 1-M Features:

PWS long stroke piston operating system

3-setting adjustable gas system

Forged upper receiver

Included forward assist

No compensator

MLOK free float handguard

1:8 barrel twist rate

Radian Raptor Charging Handle