CMMG BANSHEE AR-15 5" CM 5.7x28 Upper Receiver w/ EML4 4" M-LOK Handguard

With the ever-growing popularity of 5.7x28mm ammunition, the CMMG® BANSHEE AR-15 5" CM 5.7x28 Upper Receiver w/ EML4™ 4" M-LOK® Handguard is the perfect choice for any AR-15 pistol build. Designed to work with CMMG Mk57™ or standard AR-15 lowers (when used with 5.7 AR conversion mags), this upper receiver group features the Radial Delayed Blowback™ operating system for softer recoil impulse and reduced bolt weight compared to traditional straight blowback systems. This upper receiver group boasts a 5" 5.7x28mm barrel constructed with 4140 Chrome Moly steel and a corrosion-resistant salt bath nitride finish for long-lasting field use at the range or during self-defense. This pistol barrel also features a 1:9 twist and 1/2x28 thread pitch for your favorite muzzle devices along with an MT barrel contour. If that's not enough, this barrel comes with a CMMG ZEROED® Linear Compensator already mounted right out of the box. The upper receiver is constructed from billet 6061-T6 aluminum with a corrosion-resistant Cerakote finish. This upper receiver features a ZEROED Polymer Dust Cover and a continuous Picatinny top rail.

Rounding out this upper receiver group is the EML4 M-LOK 4" handguard. This handguard features M-LOK slots at 3, 6, and 9 o'clock positions as well as a full-length Picatinny top rail on top to maximize space for your favorite weapon-mounted accessories like weapon lights or laser sights. This handguard is also constructed from aircraft 6061-T6 aluminum with a corrosion-resistant Cerakote finish. Includes 5" 5.7x28mm barrel, upper receiver with ZEROED Polymer Dust Cover, EML4 M-LOK 4" handguard, ZEROED Linear Compensator, ZEROED Ambidextrous Charging Handle, and bolt carrier group. Product comes assembled. Backed by CMMG lifetime quality guarantee.