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We know how you 450 Bushmasters hold your loyalty, so in walks our 450FCBM upper assembly! This Patent-Pending forward charging system is designed and manufactured by Bilson Arms, in Broussard, Louisiana. This upper receiver is made of 4140 Nitride Chromoly and comes in 4 standard Cerakote colors. This item can be purchased separately and fits any standard size AR15.
Cerakote
4140 Nitride Chromoly Steel
16"
1:7
A2 Birdcage, 1/2 - 28
Mid-Length
Billet Aluminum
M-Lok
Free-Float
Picattiny