View Full Version : Rock River NM trigger fit?
June 4, 2009, 11:17 PM
Anyone know if Rock River NM trigger kits will fit receivers with small pin holes?
June 5, 2009, 08:29 AM
Fits AR-15 receivers with .154" hammer/trigger pins only. Per package insert
Unless your lower is a Colt large hole it should work. Everybody but Colt is working off the same specs.
June 5, 2009, 04:34 PM
Thanks a bunch Joat. Im working on a S&W lower, just waiting on my parts to get here :D
July 27, 2009, 11:14 PM
Installed my RRA NM Trigger group. Here is how I describe the trigger break: :D Can't say anything else. On a side note the pins went in relatively easy for being "oversized". I pushed them in with my fingers but it takes a punch and hammer to push them back out. Don't know if that is normal.
July 29, 2009, 09:25 PM
August 8, 2009, 02:12 PM
The pins that came with my RRA NM trigger were a lot tighter than the OP describes. Had to use a punch. That's on a Bushy lower. I'm also using the JP fire control group, which I like a lot better than the RRA NM.
August 8, 2009, 09:19 PM
On the JP "oversize" pins they do mean oversize. I just measured a set of RRA pins and a set out of a JP trigger, .001" diff with the + going to JP. The RRA are .001" larger than the pins in a RRA standard LPK I have.
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