MAT-9K™ Blowback Upper Receiver Gray

This upper receiver is buffer-less, side charging, non reciprocating and features Matador Arms® patent-pending EZTS™ “Easy Take-down System” with no tools required to break down the upper for maintenance and cleaning.  The 9mm upper is machined for maximum weight reduction, slim profile, and compatibility with bolt catches and lower receivers. The upper is also built with a tapered multi-material 4-piece trunnion system to maintain mechanical accuracy and durability.

The MAT-9K™  9mm AR upper is compatible with AR-9 Lower receivers in any double-stack magazine configuration:

• Glock ®
• Sig Sauer ®
• Colt® Stick Magazines
• HK® MP5™
• CZ ® Evo Scorpion™

With an AR-15 Lower Receiver it requires our Mag-X™ magazine conversion kit or equivalent type product such as Endomags.

Add this to cart and begin your next build! Our products are built with a lifetime Warranty.