The Firing Line Forums - View Single Post - AR-15 A2 Adaptor to mount a 18" barreled Police Shotgun under the AR-15 Barrel?

Dfariswheel · October 13, 2004, 04:20 PM

If you mounted an 18" Remington 870 under a 20" AR rifle, the barrel will project at least 7 inches past the AR's muzzle.

Next, the combo is HEAVY.

Last it's bulky and unwieldy.

October 13, 2004, 04:20 PM	#4
Dfariswheel Senior Member Join Date: May 4, 2001 Posts: 7,478	If you mounted an 18" Remington 870 under a 20" AR rifle, the barrel will project at least 7 inches past the AR's muzzle. Next, the combo is HEAVY. Last it's bulky and unwieldy.