I'm getting a bunch of RRA 6.8 SPC uppers in the next week or so
I want to convert at least 1 to a piston upper, carbine gas length
Will most of the normal AR-15 piston conversion kits work on the 6.8spc upper?
Any thought on Adams Arms vs PWS vs CMMG piston?
any other systems out there that people recommend?
thanks in advance,
TZL
I want to convert at least 1 to a piston upper, carbine gas length
Will most of the normal AR-15 piston conversion kits work on the 6.8spc upper?
Any thought on Adams Arms vs PWS vs CMMG piston?
any other systems out there that people recommend?
thanks in advance,
TZL


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