For over a decade CMMG has remained committed to producing some of the best AR platform firearms in the industry. The Banshee 300 is the ideal multi-purpose firearm from CMMG with all of the advanced features you’re looking for in an AR-15 pistol. Chambered in the fantastic 5.7x28mm FN cartridge, this AR-style pistol features a 5″ 4140 steel barrel and an aluminum RML4 M-LOK handguard. It comes with a CMMG Micro/CQB pistol brace and a 5 position enhanced receiver extension for the ultimate in control and a custom fit. Buy a pistol, This is a great quality AR-15 pistol that will provide you with years of awesome performance. This is our Best selling Pistols, The single-stage Mil-Spec trigger is perfect in this platform and the radial delayed blowback action handles the 5.7x28mm cartridge flawlessly. The 5.7 cartridge is a versatile choice offering suppressed fire, a fun day at the range, and it’s ideal for home defense. Whether you like plinking for recreational shooting, need a great gun for varmint and pest control, or a compact gun to protect your home and family, the Mk57 Banshee 300 from CMMG is the only gun you’ll need to Buy a pistol!
Specifications and Features:
CMMG Inc. Banshee 300 Mk57 57A1843-SG
AR15 Semi-Automatic Pistol
Radial Delayed Blowback
5.7 FN, 5.7x28mm
20 Rounds
5″ 4140 Steel Medium Taper Barrel with a 1:9 Twist
Threaded Muzzle 1/2×28 TPI with Thread Protector
7075-T6 Aluminum Receivers
CMMG Oversized Ambidextrous Charging Handle
CMMG Ambidextrous Safety Selector
Single Stage Mil-Spec Trigger
CMMG RML4 M-LOK Handguard
Full-Length Picatinny Top Rail
Magpul MOE Pistol Grip
CMMG Micro/CQB RipBrace Pistol Brace
5 Position Enhanced Receiver Extension
Receiver End Plate with Ambidextrous Sling Loops
Sniper Gray Cerakote Finish
Length 19.2″
Weight 4 lbs 7 oz
Made In The USA
Gunman –
Cool gun, but you got about twice the barrel length to the round requirement. I know why it is set up this way, but it’s clearly best in a pistol with a 5-8″ barrel length. I have a CMMG guard 8″ AR9 and its great, these guys make good stuff.
Rober Cli –
Assuming both 5.7 and 5.56 subs are right under the sound barrier, the 5.7×28 would become more powerful than a 5.56 when shooting subsonic
Rakib Pro –
Seriously!!! This is an awesome fun gun