Primary Weapons Systems MK109 MOD1-M Upper Receiver 9.75 inch Barrel 1-6 Twist Matte Black

Upper Primary Weapons Systems UPC 811154033451 MPN MK1M1U300BLK9

$1,129.95

at Brownells · checked 1 hour ago

Shipping calculated in cart

6 retailers · $1,129.95 to $1,209.95 in stock

This listing: Optics Planet $1,129.95, out of stock

Firearm Data Lab may earn a commission when you buy through this retailer link. Commissions never change a price or move a cheaper listing below a pricier one. When two retailers tie exactly, the one that pays us a commission is listed first.

Offers

Shipping estimate for one item to the lower 48 from the retailer's published policy or feed; the retailer's cart is final.

Price history

Lowest price across retailers each day.

Lowest seen: $970.41
Typical price: $1,129.95
Tracked since: Jun 25, 2026

Today's best price is $159.54 above the 136-day low and about typical.

Offers

Price history

Price alert