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Reviews by Dave
Back pressure issues
Written on Dec 07, 2021
As another reviewer stated, there is an issue with back pressure when using this block. I attempted to solve the issue by using a combination of a lightweight buffer, reduced power recoil spring, and a Barking Spider muzzle device (krink device increases back pressure), the upper continued to fail to cycle, and sometimes even fail to eject.
1 of 1 found the following review helpful.
BCA upper issues
Written on Nov 16, 2021
Review for
Geissele Maritime Bolt Catch
Solid product for most applications. BCA uppers have a cut out in a similar shape to this bolt catch, but it is not the same shape/size. The upper will not mate with the lower when this is installed, and the bolt catch will not operate with a BCA upper. I ended up cutting the edge of the bolt catch with a dremel and it now works fine, but it will not fit without modifications.
2 of 2 found the following review helpful.
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