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9/22/2017 12:11:25 AM
Posted: 3/8/2006 10:32:52 AM EDT
Do all the new piston uppers that are gaining popularity have parts that are interchangeable?(mil spec??) can a hk 416 piston work in a colt or in a P.O.F?? Or are they different? Is is the next evoulution of ar 15's? I like my normal AR's plus they are parts galore and cheaper than the pistons. Discuss.......
Link Posted: 3/8/2006 10:48:23 AM EDT
They are different.
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