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Old April 16, 2012, 06:22 PM   #1
Senior Member
Join Date: November 4, 2009
Posts: 477
JP silent captured springs

Does anyone know what this means? :
"The JPSCS is not compatible with any 9mm AR variant or any blowback system using a solid (weighted) carrier."

I don't know what a solid/weighted carrier is? Thanks in advance.
Rifles: Custom AR-15, Tavor, Arsenal SGL 31-68
Handguns: Colt Python, XD(M) 4.5" .40, Glock 19, M&P 9mm, Walther PPQ 9mm, FN FNS-9, HK P30S 9mm, Walther PPS 9mm, Browning Buck Mark
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