The Griffin MK2 9mm is a fully ambidextrous 9mm AR-15, and is the first full-ambi 9mm AR-15s with a forged 7075-T6 receiver set. It is a Colt magazine pattern lower capable of receiving …

Whether it’s a 4.5-inch pistol barrel, a mid-length carbine barrel or a full 16-inch straight profile barrel, Right To Bear has the quality American-made barrel you need. Shop our selection of …

Upgrade your AR-15 with the DTT 'Penny Blaster' 4.5-inch 9mm Nitride Pistol Upper Build Kit, offering reliable performance in a compact design. Ideal for close-quarters, this durable nitride …

This 9mm chambered 4.5 inch Modern Series Barrel is machined from CrMoV steel with a QPQ Corrosion Resistant Finish and 1/2-28 x .400 full profile threads. Designed to work with both …

The DTT Customs 'Micro Raptor' is an insanely compact 9MM AR that is designed to fold up for compact storage with rapid deployment capabilities. The 9MM chambering is designed to …

Enhance your AR-9 build with this 4.5" 9mm barrel made from 4150 chrome moly vanadium steel, providing superior strength and durability. Perfect for blowback systems, this barrel is …

The Ballistic Advantage 9MM Modern Series 4.5″ Straight Barrel (1/2-28) is a high-performance barrel designed to provide outstanding accuracy and reliability for compact pistol-caliber AR …

The Faxon Firearms 9mm 4.5 inch AR15 Barrel is manufactured 100% in-house from cradle-to-grave which makes it fully stress relieved, air-gauge tested, and 11-degree target crowned to …

The 9mm-chambered 4.5-inch Ballistic Advantage barrel from its Modern Series is machined from 4150 chrome-moly-vanadium steel and QPQ-finished for a corrosion-resistant design. It's …

Kaw Valley Precision 9MM Barrels are button rifled out of 4150 CMV Steel, QPQ Salt Bath Nitrided, with an 11-degree target crown for the best accuracy and durability possible. KVP …