Surplus USGI Knights Armament Company RAS M16A4 Mod M5 Rail

Product Description

We got a handful of surplus USGI Knights Armament Company RAS M16A4 Mod M5 rails. The boxes will have some discoloration, and rails may have some wear from use as these are surplus, not new production.

The KAC M5 RAS (Rail Adapter System) was developed for use on the US military?s M16A4, and with hundreds of thousands of rails issued to date, it is one of the most battle proven designs available for the AR-15 platform. This non-free float handguard is a simple-to-install, drop-in upgrade that features genuine Mil-Spec M1913 Picatinny Rails along its entire length. What sets the M5 RAS apart from other 2-piece quad rails on the market is that it securely locks to the rifle?s barrel nut via a clamp and screw arrangement, making it a very solid foundation upon which to mount tactical accessories. Includes three KAC 11 Rib Rail Panels.

Rifle Requirements: The M5 RAS is a drop-in replacement part for standard, 2-piece polymer, A2-type handguards. The rifle must have a rifle length gas system, delta ring assembly, fixed front sight/gas block, and either a round or triangular handguard end cap. Lighter barrel profiles work best (Government contours). Heavier barrel contours may require modification to the inside of the rail. For AR-15/SR-15 based platforms only; not compatible with SR-25 variants.

Weight: 14.4oz
Length: 11.5″
Free Float: No
Material: Aluminum
Finish:Black Anodizing
NSN: 1005-01-452-6771

How we grade surplus parts/magazines/kits etc. 

New Old Stock (NOS) – all original parts, 100% original finish, may be in original packaging, minor storage wear.

EXCELLENT – all original parts. over 80% original finish, sharp lettering of numerals and designs on metal and wood, unmarred wood, fine bore.

VERY GOOD – all original parts, none to 30% original finish, original metal surfaces smooth with all edges sharp, clear lettering, numerals and designs on metal, wood scratched or bruised, bore disregarded.

GOOD – some minor replacement parts, metal rusted or pitted in places, cleaned or reblued, principal lettering, numerals and designs on metal legible, wood refinished, scratched, bruised, or cracks repaired, in good working order. Bore disregarded

FAIR – some major parts replaced, minor replacement parts may be required, metal rusted, may be lightly pitted all over, vigorously cleaned or reblued, rounded edges of metal and wood, principal lettering, numerals and design on metal partly obliterated, wood scratched, bruised, cracked or repaired where broken, in fair working order or can be easily repaired and placed in working order.

POOR – major and minor parts replaced, major replacement parts required, and extensive restoration needed, metal deeply pitted, principal lettering, numerals and design obliterated, wood badly scratched, bruised, cracked or broken, mechanically inoperative, generally undesirable as a collector’s item. Poor condition items are generally considered gunsmith special and are not eligible for returns.

TRENCH ART – items will have stickers, carvings of pictures, or writing of names, initials, numbers, towns, etc. no condition stated but items will be serviceable. 

RACK NUMBERED – any rack numbered magazine may be in very good to new old stock condition unless otherwise stated on the listing. 

All magazines in good or better condition have been tested and are guaranteed to function. Parts kits may be missing a small pin/part that was lost in demill/transportation.