Buy MK1 MOD 1-M Upper, 300BLK, 9.75″ Barrel, BLEM
Original price was: $1,209.00.$1,049.00Current price is: $1,049.00.
The MK109 MOD 1-M Pistol is equipped with the renowned PWS PWS long-stroke piston system, maintaining the reliability that PWS owners have come to trust. This line features a free-float MLOK handguard, forward assist controls, and a design closer to mil-spec standards, catering to civilians and Law Enforcement alike. With fully forged upper and lower receivers, the MK1 MOD 1-M offers a straightforward solution for those seeking a high-value option that delivers unwavering performance in any situation.
What PWS aficionados refer to as the “ideal rifle”, the MK109 MOD 1-M is perfect for shooters looking for a weapon with endless uses. Maintaining the shortest barrel length recommended for suppressed use, this compact rifle is one of the most popular from LE to heli-hunting.
Highlighted Features
- Sub-MOA Accuracy Guarantee: Experience Sub-MOA accuracy with high-grade ammo, thanks to our Boise made precision barrels.
- PWS Long Stroke Piston System: Renowned for reliability and reduced fouling, with adjustable gas settings for optimal performance.
- Forward Assist Integration: Essential for reliable chambering of rounds, particularly in adverse conditions, ensuring seamless operation and increased reliability for shooters.
- Suppressor Optimized: Provides enhanced suppressor performance by minimizing back pressure, reducing gas blowback, and optimizing gas flow for a cleaner and more comfortable shooting experience.
- 300 BLK Chambering: Meticulously designed for outstanding accuracy and reliability for both super and subsonic 300 BLK ammunition.
- Lightweight Design: The MK109 uppers weighs just 3.5 lbs, ensuring superior maneuverability without compromising performance.
- Barrel: 9″ 300 BLK barrel with a 1:8 twist rate, delivering exceptional accuracy and versatility when firing most 300BLK rounds on the market.
- Fully Forged Receiver: Forged 7075-T651 Aluminum upper receiver for durability and strength designed to mil-spec standards, ensuring compatibility and familiarity for users.
- Free-float MLOK handguard: Offering improved handling and accessory mounting options.
- PWS FRC 2-Port Compensator: A suppressor compatible compensator that expertly mitigates recoil, muzzle rise and is compatible with the Rearden Atlas suppressor mounting system.
- Radian Raptor™ Ambidextrous Charging Handle: Ensures smooth operation for both left and right-handed shooters.
- Blem Designation: Cosmetic imperfections only – no impact on performance or structural integrity.
Primary Weapons System MK1 MOD 1-M Upper .300 BLK 9.75″ Barrel BLEM for Sale
The Primary Weapons System MK1 MOD 1-M Upper .300 BLK 9.75″ Barrel BLEM is engineered for firearm enthusiasts seeking compact tactical performance, premium reliability, and exceptional value. Designed with precision machining and high-quality materials, this upper receiver delivers dependable operation for tactical shooting, range training, and custom AR platform builds.
Chambered in .300 Blackout, the MK1 MOD 1-M Upper provides outstanding versatility, reliable ballistic performance, and excellent handling in compact rifle configurations. The 9.75-inch barrel design enhances maneuverability while maintaining impressive accuracy and smooth shooting performance.
This BLEM model offers the same trusted functionality and performance standards expected from Primary Weapons System components while featuring minor cosmetic imperfections that do not affect operational reliability. It is an excellent choice for shooters looking for premium firearm performance at a competitive value.
Key Features
- Precision-engineered AR upper receiver
- Chambered in .300 Blackout
- Compact 9.75-inch barrel configuration
- Lightweight and durable construction
- Enhanced tactical maneuverability
- Reliable cycling and recoil management
- Premium-grade firearm craftsmanship
- Compatible with modern AR platform systems
- BLEM model offering exceptional value
Why Choose the Primary Weapons System MK1 MOD 1-M Upper?
The Primary Weapons System MK1 MOD 1-M Upper .300 BLK 9.75″ Barrel BLEM combines tactical reliability with compact performance, making it ideal for shooters who demand consistent operation and advanced firearm engineering.
Perfect for:
- Tactical AR builds
- Compact rifle platforms
- Sport and recreational shooting
- Professional firearm applications
- Range and training use
Premium Tactical Upper Receiver Performance
The MK1 MOD 1-M Upper is designed to deliver reliable accuracy, smooth handling, and dependable firearm functionality in demanding shooting environments. Its compact .300 BLK platform offers enhanced versatility and powerful performance while maintaining excellent control and maneuverability.
Built with premium-quality materials and trusted firearm engineering, the Primary Weapons System MK1 MOD 1-M Upper .300 BLK 9.75″ Barrel BLEM is a valuable addition to any modern AR platform setup.
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