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scbckc 02-21-2011 10:23 PM

Looking for 2 piece quad rail for RRA CAR A4
New to forum, Rock River and AR-15's. I am looking for a 2 piece quad rail that will pop right into my new Rock River CAR A4 when i depress the Delta ring. I am not sure if they are all the same length and fit the collar opposite the delta ring.


Any help appreciated

Sniper03 02-21-2011 11:31 PM


You could always put the one on it that is on the DEA-FBI Contract CAR Rifles.
I am assuming that it is the RRA CAR Length Hand-guard. The Quad Rail is the Surefire Model M-73 Quad Rail.You can see it on the RRA Website Easy to put on! Take the original ones off! Simply slip the bottom half on first with the long tab sticking out toward the sling swivel and bayonet lug. Set the top half into place. Put a touch of Blue Loctite on the screws and just snug the two screws and its installed. *Do not over tighten the screws! The rifle must be re-zeroed because installation will change the impact pint slightly due to barrel harmonics.


ktmboyz 02-22-2011 12:45 AM

+1 on the Surefire rails... I installed one on my M&P 15 and fit and finish is great.. there are plenty of cheaper ones out there too is cash is an issue. Gunkings has a lot of great deals and most items are free shipping

Sniper03 02-22-2011 12:57 AM

One other thing I forgot about the M-73. They come with inserts I believe 3 for the rails. They are what I call the ladder insert type. They do not add any girth to the Quad Rail! And you can take a razor blade and only cut away the area you choose to mount an accessory on leaving the other sections to take away the feel of any sharp edges on the Quad Rail! You can also see them on that website with the M-73.

diggsbakes 02-22-2011 01:00 AM


Welcome! Stop by the section an tell us a little bit about yourself, so we kinda know who we're talking to.

As for your question, there are countless options that would satisfy what you're looking for. Shop Shooting Supplies | Reloading | Gunsmithing | Hunting gear — MidwayUSA is one of the bigger places for a variety of AR stuff. Searching through their catalog will educate you very well in regards to what is out there, then start directing your ordering to whoever has the closest sale. If you ever start building AR/M4gery types feel free to PM me for more links and there are MANY others here (one of whom really got me going) that are more than willing to help.

Good Luck!!!

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