VMettJr Posted May 31, 2015 Report Posted May 31, 2015 Hello I just purchased my DPMS LR-308 model RFLR-308-F.I want to put iron sights on it. I know DPMS sells the carry handle,but no front sight. This is my first civilian AR. So any help is greatly appreciated.
Robocop1051 Posted May 31, 2015 Report Posted May 31, 2015 First decide, are these primary or back up sights? Based on your answer, you might want standard 12 o'clock sights or 45° offset sights. Second, would you like the fixed or flip up? Fixed can be more accurate, but flip sights get small for storage. Generally, you get what you pay for. MechArmor Defense is releasing a new flip sight soon. We're getting an exclusive first release for a very reasonable price.
Robocop1051 Posted May 31, 2015 Report Posted May 31, 2015 After you get the sights installed, you can upgrade the standard military post to something more personal.
VMettJr Posted May 31, 2015 Author Report Posted May 31, 2015 They will be the only sights I use. I don't care for scopes. I was told I could only get a flip style sight for the front.
VMettJr Posted May 31, 2015 Author Report Posted May 31, 2015 I just looked at those sights. I don't think they will work. The gas block is lower than the top rail.
Robocop1051 Posted May 31, 2015 Report Posted May 31, 2015 Shiit. 98Z5V just posted a link to a sale for the EXACT sight you need. Hopefully someone remembers where it was
Robocop1051 Posted May 31, 2015 Report Posted May 31, 2015 Men, DSG Arms has 4 of these in stock, and on sale: Midwest Industries flip-up front sight that is designed to mount to the Picatinny Gas Block, which is AR-10 height. Should be all .308 AR Pic Gas Blocks, that are NOT designed to be same-plane (there are very, very few of those out there). DSGs regular price is $160 for this - they're clearancing them out at $55.https://dsgarms.com/mi-ar10-laffg Lesson 65b...
Robocop1051 Posted May 31, 2015 Report Posted May 31, 2015 You'd better jump fast. These are made of Unobtainium... And they're cheap!
VMettJr Posted May 31, 2015 Author Report Posted May 31, 2015 Thank you I will check on them. It gave the height difference so I'm going to measure.
98Z5V Posted May 31, 2015 Report Posted May 31, 2015 (edited) Thank you I will check on them. It gave the height difference so I'm going to measure. I think you missed it - looks like they're sold out. Lesson 65b. Could have been ordering, but you were measuring. You snooze, you lose. EDIT - Double-checked stocking levels. There are 3 left. Better stop measuring, and put it in your cart. I'm just sayin'... Edited May 31, 2015 by 98Z5V
blue109 Posted May 31, 2015 Report Posted May 31, 2015 (edited) Hold up on that order. The p/n you gave looks to be the target height (extra tall) receiver. If that is the case, those sights won't help without some sort of riser. That rifle was specifically designed to accommodate a scope with a large objective, not irons. Edited May 31, 2015 by blue109
VMettJr Posted May 31, 2015 Author Report Posted May 31, 2015 Is there any way to put iron sights on it. Or am I going to need to buy a different rifle to get iron sights.
98Z5V Posted May 31, 2015 Report Posted May 31, 2015 Gonna have to start some serious measuring. You need to find the hieght-over-bore for the top of the upper receiver, and the top of that gas block. That would be the measurement from the centerline of the bore/barrel. Once you get those measurements, post them up, and we can help more. This is your rifle, right?
blue109 Posted May 31, 2015 Report Posted May 31, 2015 (edited) Kinda screwed. You can buy the heavy DPMS quad rail that matches or You can rig it with a spacer on the gas block, but you will be pretty high over bore. Most guys just buy a stripped normal height upper and swap the parts over. Brownells was selling uppers pretty cheap. Not sure if they still do. Edited May 31, 2015 by blue109
VMettJr Posted May 31, 2015 Author Report Posted May 31, 2015 Alright thanks guess I'll start looking for a new upper.
Robocop1051 Posted May 31, 2015 Report Posted May 31, 2015 Alright thanks guess I'll start looking for a new upper. You won't need a full upper. Just a receiver. It shouldn't be too costly.
blue109 Posted May 31, 2015 Report Posted May 31, 2015 Ill answer your next question so you dont need to ask it ;)..dpms pattern uppers have 2 rail heights. The older/high version and the newer/low version. Dpms only makes the low pattern now but other companies make both and both have aftermarket support. There is about 1/16" difference in the two so just be concious of which one you have. The new/low upper is the same height as milspec ar15 uppers so may be a good idea if you plan on using a gas block or barrel mounted front sight. Easier parts compatability
uhuru10 Posted June 9, 2015 Report Posted June 9, 2015 If you need something that will level the plane between the upper rail and gas block, I have a YHM flip up front-gas block height. I got it for $76 at MidwayUSA, but will ship it to you for $50 plus shipping...I have a freefloat and run some glass in 3-gun now. Here's a product link: YHM Flip-up Front Gas Block Height
VMettJr Posted June 9, 2015 Author Report Posted June 9, 2015 I measured and the difference from the gas block to the rail is .310. I want to use a carry handle for my rear sight. Anybody know what the high will be with a carry handle? I was thinking of using a low profile front with a block riser under it. I found 1/2 inch risers to put on the gas block if I need to. Any ideas about that type of set up?
mineralman55 Posted June 9, 2015 Report Posted June 9, 2015 Robo, can you elucidate on the MechArmor iron sights? Will the rear be both elevation and windage adjustable, and will the front sight be easily adjustable similar to the KAC front sight? The KAC is a head-slapping "why didn't I think of that?" item.
survivalshop Posted June 9, 2015 Report Posted June 9, 2015 Robo, can you elucidate on the MechArmor iron sights? Will the rear be both elevation and windage adjustable, and will the front sight be easily adjustable similar to the KAC front sight? The KAC is a head-slapping "why didn't I think of that?" item. I have photo's of them in a thread in Optics section . No elevation on the rear sight , front post operates just like the A2 front . The A2 sight adj. tool will work with it .
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