Colt cuts another corner
The original solution to the greater length of the M16A2 stock over that of the M16A1 was an aluminum spacer that fit on the rear of the receiver extension ("buffer tube") and in combination with a longer upper buttstock screw allowed the longer M16A2 stock to work with the standard M16/M16A1 extension. Colt has now switched to a plastic unit in place of the original aluminum spacer --- to save a few pennies --- yet they want more money for it! Skip this flimsy junk and buy the DPMS spacer that is made to GI specs out of aluminum and at a lower cost.
