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Customer Reviews
Most Recent Reviews Bad Barrel Nut by John C, Verified Owner, May 14, 2016
It looks nice all around except that the threads on the Barrel Nut were bad. Sent it back for credit so I could spend more on a USA Made product. If you install with imperfect barrel nut your second round will feed but will not fire because the bolt ...
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Most Recent Reviews Great handguard by David, October 17, 2016
Bought this for my 4.5in 9mm ar15 and it fit great and look awesome quality is wonderful. It's big enough for a suppressor to first under. I will definitely buy another one for my next ar15 build I do.
Most Recent Reviews Good item needs tools by J, May 28, 2016
Great item. Only reason I gave it four stars was b/c the description didn't indicate I needed tools (ar specific) to install. I did end up returning it and optics planet provided me with a credit. Not exactly what I needed but I would reckoned thi...
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Most Recent Reviews Free float Quad Rail by Gabriel, Verified Owner, January 20, 2016
Good solid well made product. Nice stable platform for accessories. will need to check fit, but finish is very good and high quality. Product was delivered quickly with no issues and price was great. Overall very pleased
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Product Discontinued by Manufacturer

NcSTAR AR15 Free Float Quad Rail - Carbine Length has been discontinued by NcSTAR and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the AR15 Accessories, Gun Parts, AR 15 Tactical Rails, AR 15 Parts, Rifle Parts, AR Handguards & Forends, AR15 Upper Parts yourself to try and find the perfect replacement for you!

Product Info for NcSTAR AR15 Free Float Quad Rail - Carbine Length

The NcStar AR15 Carbine Length Free Float Quad Rail MARFF4RS has been developed to be the ideal way to mount your favorite optics to your AR15. The one piece design of this Accessory Rail from the specialists at NcSTAR mounts to the included Barrel Nut and Free Floats over the barrel. The anodized aluminum construction of the NcSTAR AR15 Free Floating Quad Rail will provide you with a long lasting and reliable addition to your AR15. For a great way to make sure you have a stable surface on which to mount your favorite optics, choose the NC Star Free Float Carbine Length Quad Rail for AR15 Tactical Rifles.image

Specifications for NcStar AR15 Carbine Length Quad Rail - Free Float:

Length: 7.25"
Weight: 11.5 oz.
Inner Quad Rail Diameter: 1.75"

Features of NcStar Free Float Carbine-Length Quad Rail:

  • AR15 Free Float Picatinny Quad Rail - fits AR15 with Carbine Length DI Gas System
  • One piece design mounts to included Barrel Nut and Free Floats over the barrel, accessories mounted onto FF Quad Rail will not affect rifle's Zero.
  • Black Anodized Aluminum Construction
  • White T-Markings on the Quad Rails
  • Requires Low Profile Gas Block and the replacement of the GI Barrel nut and Delta Ring with the supplied Barrel Nut
  • Quad Rails compatible with Weaver/ Picatinny type Rail Mounts and Accessories

Package Contents:

  • NcStar AR15 Carbine Length Free Float Quad Rail MARFF4RS

AR Handguard/Forend Screws

1–25 / 25
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NcSTAR AR15 Free Float Quad Rail - Carbine Length Unavailable & Discontinued Models

List of Unorderable Models

NcSTAR AR15 Free Float Carbine Length Quad Rail Handguard, BLACK MARFF4RS , MPN: MARFF4RS , UPC: 848754001351 , Code: NC-HZ-MARFF4RS
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