Griz Posted January 25, 2013 Report Share Posted January 25, 2013 I've knocked back a couple, so keeping this on target is a challenge.I have a DPMS LAR 308 AP4 (fornicate Feinstien) with the A2 carry handle. The sights suck and decided to replace them with some flip ups at a later date.Taking the rear sight / carry handle off is no sweat. Two screws, you're done. Picatinny rail is there and ready to go. Replacing the front sight / gas block will be a yhm 9836a railed gas block for a .750" barrel. After researching, it seems the front sight will need to be cut off since the flash hider is not conducive to removal.So is this plug and play? I plan on having a local gunsmith do the front sight removal and since he's there, put on the new railed gas block. Do I need anything else (besides buis) to make this go?Gotta be a little anal on this. My first computer was a simple thing...until you buy your own parts local. Then the little things started getting a little weird.Thanks for any help. Quote Link to comment Share on other sites More sharing options...
392heminut Posted January 25, 2013 Report Share Posted January 25, 2013 Why is the flash hider not conducive to removal? As far as I can tell it is not pinned or welded so you should be able to break it loose and unscrew it with no problem. Quote Link to comment Share on other sites More sharing options...
Griz Posted January 25, 2013 Author Report Share Posted January 25, 2013 There are a few articles (AR15.com and others) that state it is either welded on direct, or pinned on and welded over. I see no pins and nobody has a definitive answer.Either way doesn't matter, really. I don't want it anymore and a new one will be put on. If a gunsmith can remove the front sight without making a mess, I'll be happy. Quote Link to comment Share on other sites More sharing options...
392heminut Posted January 25, 2013 Report Share Posted January 25, 2013 I would contact DPMS and ask them. You should be able to see if it is pinned or welded though. If you can't see a pin or weld I would bet that it will unscrew. As a rule, the only time a muzzle device is permanently attached is if the barrel is less than 16" and the device is used to meet the 16" length. At any rate if you do cut the front sight off you still have to deal with the flash hider as the new gas block won't fit over it either. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted January 25, 2013 Report Share Posted January 25, 2013 Check this brother: http://ar15tactical.net/gas_block.htm Quote Link to comment Share on other sites More sharing options...
98Z5V Posted January 25, 2013 Report Share Posted January 25, 2013 There are a few articles (AR15.com and others) that state it is either welded on direct, or pinned on and welded over. I see no pins and nobody has a definitive answer.Shouldn't be welded or blind pinned from the DPMS factory, unless you live in a ban state. They are known for massive use of loc-tite, though. Might be a bitch to get bthat thing off there. Heads up. Quote Link to comment Share on other sites More sharing options...
Griz Posted January 25, 2013 Author Report Share Posted January 25, 2013 The gunsmith should be able to figure it out, I'll see what he has to say. The yhm-9836 is a two part assembly, so the flash hider won't be in the way to put it on.Thanks for the link. Gonna print it out. Quote Link to comment Share on other sites More sharing options...
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