Looking to replace the factory upper with the SP 6940 on my Large Pin Colt lower with a SSA/E Gissy trigger (Large Pin) installed. Are there any compatibility issues. I tried to call Colt CS today but my battery went dead after holding 15 minutes on speaker. Are there any issues other than Pivot Pin sizes (Sounds like there is an adapter available for this)??? I'd like to keep my Colt ALL Colt.
Thanks in advance for any valuable info!!!
Thanks in advance for any valuable info!!!
