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Posted: 6/12/2008 8:13:52 PM EDT
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Are the early castle nuts (with the holes) drilled all the way through? Also, is there one hole, or one on each side? I have a couple one-holers and was wondering if I should be drilling them for max-cool authenticity.  
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I've heard tell that the earliest military-issed nuts had one hole, then later-production had two opposing holes. I do know from personal experience that the one-holers can make pistol grip removal necessary to loosen or tighten the nut with a long wrench!  That is probably why the two-holers were put into production, if indeed the one holers came first anyway.ETA: I do have a gen-U-ine Colt "CAR-15 semi-auto" take-off nut that has two holes, drilled all the way through. |
I have two of those - One I have drilled through myself, one I'll leave alone. Neither had grooves for staking. Loctite for now, but if I get around to Parkerizing, I'll make the stake slots. SO...I guess the big question is: What is correct for an XM177E1? 
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