Home / Action Parts / Genesis Arms / Gen-12 Upper Receiver 12 Gauge - Gen-12 10.5'''' Upper Receiver 12 Gauge
Genesis Arms GEN12 10.5" 12 Gauge AR Shotgun Upper Receiver
$1,489.99 0 in
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Specifications
Caliber
Brand
Model
MPN
G12-U10
Action
Semi-Auto
Barrel Length
10.5"
Fits
DPMS GEN1 308 lowers and other 308 lowers sharing the same pattern; DPMS short or Armalite AR10A(R) buffer tubes
Platform
AR-10
Gauge/Chamber
12 Gauge 3" (accepts 2-3/4" and 3" shells)
Description
The GEN12 was not the 1st ""AR shotgun"", but it is the first to use a standard 308 lower. The GEN12 upper was specifically designed to matte to any DPMS GEN1 308 Lower or other 308 lowers sharing the same pattern. The GEN12 upper will work with either the shorter DPMS buffer tube or the longer Armalite AR10A(R)/ 308 tubes. The center of the upper is the short recoil system which cycles the action. This means there is no gas tube or piston. The cyclic rate can be tuned by adjusting buffer weights and springs by the end user. The upper will cycle birdshot or magnums and most everything in between. It reliably feeds both 2 A 3/4" shells and 3" Mfg: Genesis Arms
