Umarex Steel Force Automatic .177 M4/AR-15 Style CO2 BB Gun (2254855)

Umarex Steel Force Automatic .177 M4/AR-15 Style CO2 BB Gun (2254855)


Restricted Shipping: NJ

14 in stock

SKU: UX2254855 Categories: ,

Fires .177 (4.5mm) steel BBs

Approximately 430 Feet per second velocity

300 BB capacity

Powered by two 12-gram CO2 canisters (not included)

Semi-Automatic and 6-Shot burst mode



The Steel Force from Umarex is one of the most fun BB guns on the market. With it’s 6-shot burst capability, it is sure to put a smile on your face when you take out some soda cans. 


The Steel force is a M4/AR-15 style BB gun that fire .177 caliber BBs.  It is powered by CO2 and uses CO2 to mechanically cycle the action.  The CO2 canisters used by this gun are stored in the faux magazine.  The magazine easily separates from the rifle to allow you easy access to change the CO2 canisters.  The rifle is surprisingly sparing on CO2 usage.  The exact shot count that you are able to get out of your CO2 canisters will depend on how you use the BB gun. 


The rifle has a composite stock that is adjustable.  Due to the adjustable butt stock, this BB gun can fit multiple shooters, big or small.  The Umarex Steel force comes with polymer flip up sights.  Although they are functional sights, do not expect much, as they are pretty much there for reference.  The top of the receiver has a Picatinny style rail that serves as a perfect mounting surface for a BB gun red dot sight.  The rifle also comes with a quad rail that will allow you to mount other accessories.  You can mount lasers, fore grips, bipods, or other Picatinny mounted accessories.


The Steel Force has a 300-Round BB reservoir that can be accessed at the front, top portion of the hand guard.  This reservoir feeds a 30-round internal magazine.  Feeding the BBs from the reservoir into the magazine can take a little bit of learning, but is easily accomplished. 


The Steel Force has an AR-15/M16 style safety selector on the left side of the rifle, ideal for right-handed shooter.  The rifle has 3-modes to choose from; safe, semi-automatic and 6-shot burst.  

Additional information

Weight4.5 lbs
Part #



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