New Bushmaster 91822 M4 A3 5.56 16" complete upper half with A3 receiver and removable carry handle. Stock # 91822. This is the most popular Bushmaster complete upper half on the market. The M4 A3 setup is, without a doubt, what everyone is looking for. The versatility of this configuration, with A3 removable handle included, allows for a variety of setups.
16" M203 Step Barrel
Complete Upper Receiver With Bolt
No Magazine Included With This Upper