Primary Weapons Systems MK111 MOD 1-M SBR 5.56 NATO, 11.85 in Barrel, Long-Stroke Piston, Adjustable Gas, M-LOK Handguard
This PWS MK111 MOD 1-M short-barreled rifle stands out for its long-stroke piston system with a 3-position adjustable gas regulator, 11.85-inch threaded barrel, and uniform black finish. It comes configured with a SureFire SF3P flash hider, a Radian Raptor-LT ambidextrous charging handle, and a free-float MOD 1-M M-LOK handguard with a full-length 12 o'clock Picatinny rail. Factory markings include an upper marked ".223 Wylde" and a lower marked "MODEL MK1 CAL. MULTI."
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minor scratches and blemishes present.
What's Included
- Primary Weapons Systems factory box with EVOLVE branding and MK111 MOD 1-M SBR end label
- Primary Weapons Systems EVOLVE Product Manual
- 1x 30-round Magpul PMAG polymer AR-15 magazine
- Radian Raptor-LT ambidextrous charging handle (installed)
- SureFire SF3P three-prong flash hider, 1/2x28 (installed)
Built on the AR-15 platform, this MK1-series MK111 MOD 1-M uses a long-stroke gas piston system with a 3-position adjustable gas regulator. This setup is designed for consistent operation across settings and ammunition types. The rifle features a uniform black finish throughout.
The 11.85-inch barrel is threaded 1/2x28 and fitted with a SureFire SF3P-556-1/2-28 three-prong flash hider. The upper receiver is marked ".223 Wylde," and the lower receiver is marked "MODEL MK1 CAL. MULTI." A forward assist, shell deflector, and PWS-logo ejection-port dust cover are included.
The free-float PWS MOD 1-M M-LOK aluminum handguard provides ample mounting real estate and carries a full-length 12 o'clock Picatinny rail. Controls include a manual safety and a curved trigger, and the rifle is equipped with a Radian Raptor-LT ambidextrous charging handle.
Furniture includes a collapsible carbine stock with an approximate length of pull from 10 to 13.5 inches and a textured polymer pistol grip with a non-A2 profile. The receivers and handguard are aluminum with a black finish.
This short-barreled rifle is chambered in 5.56mm NATO with a listed capacity of 30+1 and ships with one 30-round Magpul PMAG. Country of origin is the USA, and the configuration corresponds to PWS part number 18-M111RA1B-NFA.