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9/22/2017 12:11:25 AM
Posted: 8/19/2005 9:19:20 PM EDT
I have a RRA lower and I am not sure what the pin diameter is can anyone help. I would presume my options are :

These are available in three diameters, .154” for standard use, .1555” for a tighter fit or receivers with wear in the pin holes and 3rd size is .170 for large pin Colt lowers.

Thank you
Link Posted: 8/19/2005 9:23:40 PM EDT
It should be .154 standard trigger pins. No need for the oversize pins (.1555), those are for slightly worn out trigger pin holes IMO. The 154's should be the right ones.
Link Posted: 8/19/2005 11:36:32 PM EDT
154's will do just fine



but i have noticed that the some prefer the 155 for match triggers and such.
Link Posted: 8/20/2005 4:58:36 AM EDT
Just put a pair in my BM last night (with a WOA NM Tuned Trigger) - 0.154 were just fine
Link Posted: 8/20/2005 9:01:56 AM EDT
The .1555" or .156" (whatever they are marked) come with the RRA NM trigger. They didn't fit my new RRA lower, so I re-used the std .154" pins and the trigger has been great.

IIRC, RRA includes the oversized pins to prevent wear on some part (I'm guessing the lower????) and to make sure there is no slop in the trigger.

I didn't use one set of them, but the other set slipped right in my OLY lower that had about 2000rds on it at the time.

WIZZO
Link Posted: 8/20/2005 11:00:16 AM EDT
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