tdp
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Index pin undersized by .0002 should it be concerning?
Just got a barrel with the index pin measuring .12480 Colt TDP spec calls for .1255 +0.000/ -.0005 so .0002 undersized I have another barrel from the same company measuring .12505 should this be concerning at all? The .1248 index pin is not sloppy in my upper receiver mouse hole/index pin slot...- URGILOVERR
- Thread
- advice or expertise ar15 armorer gunsmithing indexpin tdp technical
- Replies: 92
- Forum: The Armory
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U
Need recommendations on tight Fighting .750 gas blocks
Alright, I have a few DD barrels and their journals mesure .74945-.74960 which is well within the Colt TDP spec and both of my BCM gas blocks are able to slide on very smoothly with no resestince (not sloppy) and I can spin them freely, I’m not bashing BCM I’ll keep both blocks as a spare...- URGILOVERR
- Thread
- ar15 bcm daniel defense gas block spec tdp
- Replies: 6
- Forum: The Armory
