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Posted: 11/8/2014 2:26:58 AM EDT
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As I anxiously await transfer of an inbound RLL, I have some questions regarding preparation of the host platforms:
1. What are the preferred dimensions to mill the rear section of a BCG to SP1/RLL compatible specs? I have seen numbers posted from 0.370" to 0.400" 2. What is the best route to making or purchasing reliable/durable paddles of various thicknesses to ensure proper timing? 3. Are there any "good" 3rd burst triggers available to use for select fire conversion? I hate MIL-SPEC triggers and would love to use a Geissele two stage if possible. Thanks and feel free to pass along any other RLL newbie advice. I have learned a tremendous amount from this site. Esox |
| Thanks for the reply. I have heard of M60Joe's superb skills. However, these mods seem extremely simple to perform and I would prefer to learn how to do them myself as a fun project to kill time while the RLL is in NFA jail. If my efforts fail, everything will then go to M60Joe. |
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1. What are the preferred dimensions to mill the rear section of a BCG to SP1/RLL compatible specs? I have seen numbers posted from 0.370" to 0.400"
I prefer to mill more than less. This allows you to use a thicker paddle and the bolt carrier to not bend the top of the paddle over the back of the rear take down lug over time. In my experience the thicker the paddle you use the longer it will last. I have some paddles that have not been replaced for years. I would wait until you get your link, get one of the thicker dimentional paddles, and then time the whole thing slowly removing material from the back of the bolt carrier. This is what I have always done, vs trying to time a paddle after the fact to a milled carrier. 2. What is the best route to making or purchasing reliable/durable paddles of various thicknesses to ensure proper timing? I have never made my own. I bought a whole bunch of paddles years ago (don't remember where or who) and have never bought additional ones. I am pretty sure both Andrews Armory and M60 Joe sell replacement paddles. 3. Are there any "good" 3rd burst triggers available to use for select fire conversion? I hate MIL-SPEC triggers and would love to use a Geissele two stage if possible. The only known conversion method to select fire on a link is with a Mil-Spec 3rd burst trigger assembley. I am not aware of any Geissele 3rd burst setup. Essentially you need a fcg with two disconnectors in order to enable select fire on a RLL. |
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That's probably good advice to wait and mill the BCGs to the paddle thickness on hand. I think I will buy 2-3 different thickness sheets of spring steel and get them laser cut into paddles. This would probably yield a lifetime plus supply of paddles for less than $150.
With a an upper receiver, BCG, and paddles in hand, what should be the dimension of the 'slop' between the BCG and the takedown pin post? For example, if the gap between the two is 0.050", would a 0.040" paddle thickness be preferred, which would have a 0.010" slop? Or, should there be no slop? Or, does it really all depend on how the length of the RLL mates up to the particular pin post and BCG? Thanks, Esox |
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Does anybody have some good suggestions for non-burst triggers to use with the RLL?
I would prefer a 2 stage, but I assume that most all 2 stage triggers would not work. That pretty much eliminates all of the Geisseles (except for the ALG defense MIL-SPEC stuff). It looks like the JP single stage trigger should probably work though. Thanks! Esox |
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Quoted:
Does anybody have some good suggestions for non-burst triggers to use with the RLL? I would prefer a 2 stage, but I assume that most all 2 stage triggers would not work. That pretty much eliminates all of the Geisseles (except for the ALG defense MIL-SPEC stuff). It looks like the JP single stage trigger should probably work though. Thanks! Esox I put a JP in my Colt 16A1 more than a decade ago, and it's still there -- but now I have JPs in all my ARs, whether FA or semi. I really love them. Very precise, very easy to grab two- or three-shot bursts with only trigger control. Once I set 'em up the way I like them and locktite the adjustment screws, they are good forever (well, my Colt it past 40k rounds through it with this trigger without tinkering). YMMV. |
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