This Semi Automatic Umarex Colt M4 Carbine rifle replicates the current military issue M4. It uses a 30 round magazine and has aluminum upper and lower receivers. The rear sight is adjustable for windage. It comes with a collapsible stock and a removable carry handle.

Specifications and Features:
Front sight adjustable for elevation
Rear sight adjustable for windage
Made of high quality aluminum
Adjustable telescoping stock
Removable carry handle
Functioning dust cover
Steel flash suppressor
Blowback operation
Standard forearm
Bolt catch
22 Long Rifle
30 rounds
31.1"-34.4" overall length
16.2" barrel
1:13.75"
6.0 lbs