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Willie Lowman · October 21, 2009, 11:36 AM

Most calibers use the same bolt carrier, just a different bolt.

9mm uses a mag well adapter either welded to each mag or temporarily inserted into the mag well. You will probably change the hammer and bolt too. 5.56 hammer is to short.

If you shoot a lot of .22 in a m16, clean the gun very well when you are done. There have been some kabooms linked to 22 gunk in the 16.

7.62x39 can be finicky on feeding due to the shape of mags. google m16 frankenmags and c-products. Some folks are lucky with them, some aren't.

October 21, 2009, 11:36 AM	#4
Willie Lowman Senior Member Join Date: March 5, 2009 Location: Uh-Hi-O Posts: 2,241	Most calibers use the same bolt carrier, just a different bolt. 9mm uses a mag well adapter either welded to each mag or temporarily inserted into the mag well. You will probably change the hammer and bolt too. 5.56 hammer is to short. If you shoot a lot of .22 in a m16, clean the gun very well when you are done. There have been some kabooms linked to 22 gunk in the 16. 7.62x39 can be finicky on feeding due to the shape of mags. google m16 frankenmags and c-products. Some folks are lucky with them, some aren't. __________________ Stopping power: The power some guns have to make you stop what you are doing and get your wallet out.