Adams Arms P1 16" Gas piston Complete Upper 5.56 FGAA01357 M4


New in box Adams Arms P1 16" complete AR-15/M4 Gas piston upper receiver!  Comes factory new in box and ships direct where legal.

The Adams Arms P1 model is the perfect platform for shooters who enjoy building and customizing their rifle. The P1 model includes our Picatinny Railed Gas Block with 3 adjustable settings and M4 furniture. The P1 is your Piston Driven foundation, ready to be customized to fit your needs.  

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Please allow 2-3 days for  items to ship once payment is received.

Long guns and accessories ship UPS Ground. Handguns are shipped USPS priority mail.

Once payment and FFL are received we will email you a tracking/delivery confirmation number.


Serial numbers will vary.