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PRIMARY WEAPONS AR-15 MK1 MOD 1-M UPPER RECEIVER ASSEMBLY 300 BLACKOUT M-LOK

MK109 MOD 1-M Upper Receiver 9.75 Barrel 300BLK
Brownells #
100031916
MFR #
M109UB01-1F
UPC
811154030399
$1,029.49
Coupon Code
Purchase Limit Help

Out of Stock

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Specifications
Finish:
Anodized
Make Model Fit:
AR-15.Universal
Barrel Contour:
Medium
Barrel Length:
9.75
Cartridge:
300 AAC Blackout
Receiver Style:
Complete
Twist:
1-8
Item Length (Inches):
9.750
Restriction
Restricted Part:
Yes
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Description

The Primary Weapons Systems MK1 MOD 1-M line of upper receivers feature 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, the MK1 MOD 1-M is a no-nonsense tool for when you need a high value option that is relentless and unstoppable.

PWS bring back the original MK109 in 300BLK. The 9.75" barrel length provides excellent reliability with a range of ammunition and still function well, with or without a suppressor and without the need for an adjustable gas system. The MK109 includes the Triad 30 Compensator.

  • Long stroke piston system
  • M-LOK handguards
  • Includes Radian Raptor Charging Handle
  • 1:8 barrel twist rate

With the fully forged upper, the MK1 MOD 1-M is a no-nonsense tool for when you need a high value option that is relentless and unstoppable. All NFA rules apply.

Restricted Part
Please check with your state regulations for ownership of Restricted Parts. May require documentation.

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