Grady's Great Outdoors
FFL Licensed DealerServing SC Since 1961Tues–Sat: 10AM–7PM
Primary Weapons Systems MK109 Mod 1-M Upper Receiver 300 Blackout 9.75" Black Anodized - MK1M1U300BLK9
Primary Weapons Systems

Primary Weapons Systems MK109 Mod 1-M Upper Receiver 300 Blackout 9.75" Black Anodized - MK1M1U300BLK9

SKU: MK1M1U300BLK9UPC: 811154033451
$1022.00$1209.95

MSRP: $1209.95

✕ Out of Stock

FFL Licensed Dealer
Fast, Secure Shipping
Complete AR-15 upper receiver chambered in 300 Blackout with a 9.75" barrel featuring a 1:8" twist rate. The upper includes PWS Long Stroke Piston System with 3-setting adjustable gas block, PWS Triad muzzle device, 8.9" PicLok M-LOK handguard, and Radian Raptor ambidextrous charging handle. Anodized black finish provides corrosion resistance and is ready to install on any AR-15 lower receiver.

Related Products

Primary Weapons Systems MK109 Mod 2-M Upper Receiver, 300 Blackout, 9.75" - MK1M2U300BLK9
Primary Weapons Systems

Primary Weapons Systems MK109 Mod 2-M Upper Receiver, 300 Blackout, 9.75" - MK1M2U300BLK9

MSRP: $1499.95
$1316.00
Product Image
Primary Weapons Systems

Primary Weapons Systems MK116 MOD 1-M Upper Receiver 7.62x39 16.1" Black Anodized - MK1M1U762X3916

MSRP: $1209.95
$1022.00
Product Image
Primary Weapons Systems

Primary Weapons Systems MK116 Mod 2-M Upper Receiver, 7.62x39, 16.1" Barrel, Black Anodized - MK1M2U762X3916

MSRP: $1499.95
$1316.00
Product Image
Primary Weapons Systems

Primary Weapons Systems MK1 Mod 1-M Upper Receiver 6mm ARC 18" - PWS MK1M1U6ARC18NC

MSRP: $1209.95
$1022.00
Product Image
Primary Weapons Systems

Primary Weapons Systems MK116 Mod 1-M Upper Receiver 338 ARC 16.1" - PWS MK1M1U338ARC16

MSRP: $1209.95
$1022.00