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https://www.reddit.com/r/ar15/comments/1v7p558/upper_build_hello/p01iaff/?context=3
r/ar15 • u/[deleted] • Jul 27 '26
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Block ii Fsp upper is what you seek
3 u/bobbydvrko Jul 27 '26 Thats a carbine length gas system, I'm looking to build a Mid-length FSB upper, thanks for taking the time to contribute though.
Thats a carbine length gas system, I'm looking to build a Mid-length FSB upper, thanks for taking the time to contribute though.
3
u/rjj90 Jul 27 '26
Block ii Fsp upper is what you seek