AR Sponsor
Posted: 1/11/2003 7:30:52 PM EDT
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Hey guys, I was lucky enough to pick up an SP1 today. I had planned to convert it into a pre-ban M4 using a Bushmaster M4 SIR upper, but I need to know if there's any way to do so. I'm not good enough at eye-balling these to know, but I believe my pivot-pin is the larger pin (big hole). Any help is appreciated. Thanks in advance guys! |
AR Sponsor