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Posted: 5/26/2007 11:34:46 PM EDT
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Hi all, glad to finally register. I've been researching trigger groups and methods of legally converting to full auto. Regarding the lightning link, I have a question for those more educated than myself. I fully understand how it works except the paddle, and I have read the articles out there on the subject. Looking at my Bushmaster, I can't really tell where it would contact the carrier. It couldnt go too high up or it would prevent the carrier from traveling all the way forward, but if it doesn't go that high, what does it actually touch? There's no other notch or groove that it could catch on to pull it forward. Any info is appreciated. Thanks in advance, BMM |
| LL use SP1 type carriers to work, the standard semi carriers are different. Here ya go, read this. www.quarterbore.com/nfa/lightninglink.html |
Did you actually look at the pics of the bolt carrier? They are cut differently. Take your upper off, pull out the BCG, the paddle will go in the groove in the BCG and behind the pivot pin block in the upper. Just look at it on your gun, i think you should be able to figure it out. I think quarterbors site explains this very well. Other thing to note, some lowers will not allow the link to be installed and will need to be milled to fit the link. Tkae Quarterbore's advise, mill the lower not the expensive link. I did a lot of research on a link and think i have decided to get a RR because until you add in the cost to mill out the lower, get the sp1 bolt carrier, modify the 9mm bolt carrier, get a select fire kit and no .22 conversions yet the RR is a more attractive buy to me. ETA, the carrier will have no problems riding home. The weight of the carrier moving forward is what makes the paddle pull the link back. |
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On the bottom of the bolt carrier where the carrier goes from semi circle to full circle that front edge of the full circle is what hits the paddle. We are talking perfectly timed with only a few thousandths of an inch of travel, if not so then yes the paddle would keep the bolt from going into battery. |
When was your bushmaster purchased? My bushy was purchased about 6yrs ago and i know a RLL will not fit. The depth would be ok but the side webbing is too narrow. It will not fit in my preban oly or post ban stag either. It would fit in the stag but the bottom shelf would not be deep enough and the upper would not close, at least based on quarterbore's info on size / space required and other demensions post on line about the link. Also, the std bcg might work but i'd prefer the paddle hit the bcg squarely and not rely on the rounded edges to engage it. |
TKD-II, Quarterbore made it sound like pretty much all bushmasters should work, thats how I understood it anyway. "To use an SWD Auto Disconnector with an AR-15s it is essential that there is at least an 1/8" clearance under the takedown pin post for a lightning link to work. All Bushmaster, Sendra, Essential Arms, and some PWA preban lower receiver will work perfect without modification. Some early Colts such as pre-89 SP1 and Sporter II will also work perfect without modification. Later Colts (post-90 to mid 90's) will also work perfect if the pinned-in sear block is removed." |
| Based on these dimensions here, the webbing inside my bushy would be too narrow wher the link gets narrow in the middle. At least based on my measurments on my bushy lower. |
My Bushy lower is about 6-7 years old, and It fit just fine....It was a while back but I dont remember it being too tight either or anything. also that link looks like something for someone to illegally manufacture their own link....May not be the exact specs of a RLL |
you know, there ARE quite a few people out there who can legally manufacture lightning links. |
I don't see any one eBay. If there were, they would be very suspect.|
They are there, and of course unregistered. They are hidden in cycling equipment last time I checked. The guy selling them claims he's sold over a HUNDRED. Lemme see if I can find the most recent auction. I can't believe no one reports him and ebay doesn't pull the ads. What's more, if you buy one of these everybody knows who you are. Insane. |
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I couldn't find it just now. It's possible someone already reported it. They were called something funny, like colt clip or 5.56 speed clip, but I ran across them yesterday and they were definitely LLs, with the name of the manufacturer stamped in them in everything. These would be totally illegal when possessed in conjunction with a semi-auto AR AFAIK. |
I would assume they are illegal even WITHOUT a semi-auto AR or any gun for that matter as the Lightning Link is considered by the BATF as a machine gun....hence why the other guy was selling Non-complete ones. |
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