AR-15 MK1 MOD 1-M Upper Receiver Assembly 300 Blackout M-LOK

Bundle Package

by Primary Weapons

AR-15 MK1 MOD 1-M Upper Receiver Assembly 300 Blackout M-LOK

User Ratings

No ratings yet

Be the first to review this product

Retail: $1,029.49

AR-15 MK1 MOD 1-M Upper Receiver Assembly 300 Blackout M-LOK

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

Features

  • Long stroke piston system
  • M-LOK handguards
  • Includes Radian Raptor Charging Handle
  • 1:6 barrel twist rate

Specifications

Manufacturer:
Primary Weapons
Category:
upper-receiver
Platforms:
AR-15
Weight:
25 oz (1.56 lbs)
Length:
9.8"
UPC:
811154030399
MPN:
18-M109UB0B
Required Component:
Yes

Parts Cabinet

Track parts you own or plan to buy.

Where to Buy

Brownells
In Stock
$1029.49

Sponsored

MantisX

The smart way to train your AR build

Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.

Shop BlackBeardX

Price History

Current

$1,029.49

Lowest

$1,029.49

Highest

$1,029.49

Tap data points for details

Price Alert

Sign in to save a target price and receive an email when this component drops.

Sign In to Set Alert

Bundle Package

This is a bundled product that includes multiple components. The exact contents may vary - check the product description for more details.

• Complete assembly ready to use

• Multiple components included

• Value package pricing

Builds Using This Part

No builds yet — be the first to use this part.

Submit a Review

Reviews

Loading reviews…