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1/25/2018 7:38:29 AM
Posted: 4/20/2002 10:25:29 AM EST
Link Posted: 4/20/2002 10:28:33 AM EST
Link Posted: 4/20/2002 1:40:42 PM EST
The very first M16’s did not have trapdoors. At about the time the A1 designation was adopted, a trapdoor was also adopted. Thus it is probably correct to say that A1’s have them.

However, since both of these stocks are the same length (and are shorter than the current A2 stock), vendors often refer to both as A1 stocks.

If your looking to buy an A1 stock, you need to specifically determine whether or not it has a trapdoor. The “A1” designation by itself is not reliable.
Link Posted: 4/20/2002 2:36:23 PM EST
Mine doesn't have one.
Link Posted: 4/20/2002 5:59:23 PM EST

Originally Posted By bunghole:
Mine doesn't have one.

Is it marked A1? Does it have a tear drop foward assist? Does it have a mag release fence?

If you answer no to any of these questions it is not an A1.
Link Posted: 4/20/2002 6:24:24 PM EST
True A1 stocks have the trapdoor with the compartment for the aptly named buttstock cleaning kit. It was part of what made them M16A1's, though you may find some of the M16E1's and early M16A1's with the older stock.

Early M16 stocks do not have a trapdoor and referring to them as A1 stocks is basically incorrect.
Link Posted: 4/21/2002 7:28:06 PM EST
I think there was some overlap. My dad swears that the M16 he had in '69-70 had a forward assist but no trapdoor.
Link Posted: 4/21/2002 9:12:34 PM EST
Link Posted: 4/22/2002 8:49:48 AM EST
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