Armory Sponsor
Posted: 12/16/2006 9:40:55 PM EDT
| Will the DPMS 4-position selector swivel over the selector stops on many/most/all AR15s? I know the kit from autoweapons.com requires stops to be milled off, but the DPMS kit looks similar to the "original" colt 4 position kits that had a chunk out of the selector to allow proper clearance. This will be on an ar15 with DIAS, so I'm not completely against have some material removed from the receiver if necessary. Would rather not mill stops off completely though. |
| hello. triggerfish, do you still have the kit? if so, do you want to sell it? email me back if you do. thanks. kirk [email protected] |
|
Theres an old trick for shooting a burst with an automatic weapon. You pull the trigger, and when three rounds are fired, you stop pulling it. Seriously, having the selector order F'ed up and having 270* rotation to go to the farthest setting is a pain in the ass. |
|
A four-position fire-control setup is on the top five "dream" list for first-time AR15RR/M16/RDIAS owners. It's also on the top five list of Lessons Learned -- the very first accessories to be recognized as worthless. This is America, and you can trick your guns out in any legal way. More power to ya. But I will not own a four-position FC. And I advise others against it, too. A few reasons why, in no particular order: --The burst function uses a non-resetting cam, same as on a burst-only M16. That means that if you pull the trigger and let off before the full three rounds fires, the next time you pull it, you only get the remaining rounds in the first burst. Then you need to let off the trigger and pull it again to get a full three rounds. --Look at a safe/semi/auto fire-control set. It's four parts just like an AR15 with a few dimensional differences. Now look at a four-position fire-control parts set: It has extra parts, cams, springs, two disconnectors instead of one, all packed in the same area designed for an S/S/A set. You have just increased exponentially the chances of something going wrong due to wear, misalignment, jamming from dirt, insufficient lubrication, etc. They are much tougher to clean effectively while in the receiver. Bottom line: You have just vastly increased the potential for function failures. And if you're like most RR owners, you're not going to be happy with just a 20" A1 upper and full-length rifle buttstock. Going outside the milspec greatly increases the need for tweaking, tuning and troubleshooting -- and adding that four-position FC has just eliminated the one reliable non-variable. --I'm old-school, and I believe you should master your firearms. "Burst" functions are like governors on cars, or training wheels: They "idiot-proof" a machine gun and make it usable for someone with inadequate training. Like all training wheels, they allow the operator to rely on those limiters, instead of learning proper trigger control. You tend to start relying on the tool to do the safety work, instead of your own brain and reflexes. Most civilian recreational MG shooters can and do practice enough to develop correct trigger discipline. The majority of the owners here can pick any number, and do a burst of exactly that many rounds, just by getting on and off the trigger at the proper time. Five-round bursts, three-round bursts, doubles, even singles. It is not difficult -- and you are in control, not some doohickey inside the MG. When I go to the range or a shoot and come across someone with a four-position selector, I introduce myself and hope I'm making a new friend. But I keep an eye on them -- because a four-position means the owner is most likely a newbie, and if they need to put limiters on their MGs, there is a good chance they don't yet have the experience to trust themselves. That means I should not trust them, either -- at least, until they remove that governor.  But hey! All my cars and trucks have manual transmissions, and the fast cars have had the chips reprogrammed to eliminate the rev limiting. I believe I can drive better if I am in control of the engine's RPMs, because that determines the exact amount of torque I'm getting at all times -- instead of having some engineer in Detroit dictate my driving style. As always, Your Mileage May Vary. 
|
|
I shot my M16 during the weekend. With the exception of a few single shot at the start, every time I pulled the trigger I had the switch on AUTO. While shooting bursts of three isn’t all that easy, it isn’t all that hard either. Basically; the only reason I didn’t do bursts of three with every magazine is that I just wasn’t interested in doing so. In fact; I did three round bursts with only one of the 27 magazines I used. If you want to do nothing but three round burst, just plain practice, practice, practice. After a while it will almost become second nature. PS: Long Live Mag Dumps and Stick Transmissions! |
|
I say it's your gun do what you want. I had a 4-position kit in a dedicated/suppressed M16/9 - I have since sold it ... It was nice in that the 3rb was sort of benign ... it was always there if I wanted to do a "watch this" at the range .... It went: Safe-Semi-3RB-Auto So semi was one movement of the selector as was auto - 3rb was out of the way, 2 selector movements away .... Forget who made it ....... No spacer-plate was involved as the selector was notched as to skip over any stops .... Neat toy ...... |
|
I do not think the after market kits sear bearing point on the selector is designed the same as the Colt one. I myself would only use the Colt one because of how they are made. I removed the one in the lower I have only because of the design difference. I do not see a problem with having an extra choice if you want one. |
|
Now we're getting somewhere. I agree with the self-control burst method (and standard tranny!) but I am all about maximum flexibility. Is it less reliable? Maybe so. Will it always shoot 3 rounds when on burst? No. But I am also NOT going to be using this in a life-or-death scenario. I'm not in Iraq and I would NEVER choose to use an NFA firearm as a means of protection. Thats why god invented the Sig 229. But, as pointed out, I am a newbie DIAS owner and I love the novelty of the 4 position selector. Auto if I want it and burst - maybe I want to try firing left handed? friend shooting it and wants to play around a bit?? Or just to figure out for myself why the 3rd sucks?? No better way to learn than by experience. If I tire of it, Im sure someone else will take it off my hands or I'll just never switch it to 3rb. In summation, the selector is NOT designed to swivel over the selector stops. The (ugly) red selector plate provides the clearance necessary to go over the stops. Thanks for the opinions and comments. |
The one I had from "WA Tom" over on subguns had slector notched so that it would go over the stops. |
Armory Sponsor