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Posted: 7/17/2013 9:00:29 PM EDT
[#1]
lube it, work it, trim the spring as a last resort
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Posted: 7/17/2013 10:25:30 PM EDT
[#2]
Quote HistoryQuoted:
lube it, work it, trim the spring as a last resort Lightly round the tip of the detent |
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Posted: 7/18/2013 6:13:55 PM EDT
[#3]
Quote HistoryQuoted:
Lightly round the tip of the detent Quote HistoryQuoted:
Quoted:
lube it, work it, trim the spring as a last resort Lightly round the tip of the detent This. Some of them are just stickier than others. If it's overly tough to switch then I'll hit the tip of the detent with a file and keep trying it until it feels right. |
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Posted: 7/18/2013 6:29:14 PM EDT
[#4]
Make sure the detente is not upside down, or is the wrong one.
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Posted: 7/19/2013 6:20:23 AM EDT
[#5]
Topic Moved
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Posted: 7/25/2013 7:04:26 AM EDT
[#6]
Possible causes:
Old, worn out detent. Though it takes a long time to wear the tip of the detent, if the selector groove is rough, it can wear prematurely. You should remove it and stand it next to a new one, and take a close up picture of them both, as they're small, and the differences aren't always easy to tell with naked eyes. Left is a stainless steel KNS detent, right is a detent that came from a lower parts kit that didn't see much use. In the picture you can see much more detail, such as the dime a dozen detent's base isn't even straight 
Pistol grip's spring hole is shallower, thus exerting more spring pressure than a grip with a deeper spring hole. Trimming the spring by a coil or two would solve this if this is the case. The selector itself, specifically, the detent groove The trigger group The receiver (there are some M16 receivers with questionable specs) I'll be happy to troubleshoot it with you, [email protected] 
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Posted: 7/25/2013 7:14:16 AM EDT
[#7]
Don't trim springs. More likely fixed by a drop of clp on each bearing surface of the selector in the lower.... and or verifying the correct detent.. and that it's not mis-shaped. I wouldn't round off the detent.... that could give you mushy position engagement.
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Posted: 7/25/2013 8:28:07 AM EDT
[#8]
A bit more information.
Its a colt RR. I installed a colt FA LPK last year and it hasn't seen a whole lot of use. Has a standard colt detent, spring, and selector. The trigger group is a Geissele SSF. I did as some of you suggested and threw a bunch of lube on it (slip 2000) and attempted to round off the edge of the detent to some extent. Doing both loosened it up a fraction, but its still pretty tough, at least compared to my 6940s which is like glass, but still has discernible "notches" so you know it's fully selected. I did consider swapping out the selector with the BAD-CASS, but I haven't yet decided to do it. I can't recall if those come with new detents and springs, but I think they do. It something ill give further thought in the future. I think I can live with it the way it is now. It's not optimal, but its not as bad as it was. |
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Posted: 7/25/2013 9:23:19 AM EDT
[#9]
Just try a different selector.
Some are just crisp and some are just mushy. |
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Posted: 7/25/2013 10:34:32 AM EDT
[#10]
Quote HistoryQuoted:
Just try a different selector.
Some are just crisp and some are just mushy. I don't have a backup full auto selector :/ |
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Posted: 7/25/2013 12:29:09 PM EDT
[#11]
Our M16 selectors have different detent groove and holes than the factory M16 selector.
Factory M16 selector's detent groove goes 360 degrees, even to where there is no detent hole. Milspec M16 selector's detent holes are bi-directional, in that you can rotate past the selector either way when the detent is engaged. On many receivers, there are selector stops on the left side of the receiver to prevent over-rotation, but if an M16 receivers doesn't have selector stops, or if you put the selector lever on the right side where there are no selector stops, (such as ours, which is fully modular, and allows you to install a lever on the right side of the receiver, and no lever on the left side), the selector will rotate 360 degrees. 
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Posted: 7/25/2013 1:24:29 PM EDT
[#12]
^ That's actually really interesting from a technical standpoint, but I fail to see its relevance/practical value to my situation. Am I missing something obvious (perfectly possible, as my head is still buzzing from finishing my research paper)?
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Posted: 7/25/2013 6:29:40 PM EDT
[#13]
Since you were considering one of ours, I pointed out the difference
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Posted: 7/25/2013 7:14:03 PM EDT
[#14]
Quote HistoryQuoted:
Since you were considering one of ours, I pointed out the difference Haha ok, understood. |
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