Product Details
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The KAC 556 MRE free float RAS allows you to install a extended length picatinny handguard onto your M4 style barrel that has a fixed front sight and carbine length gas system. Great for Colt 6920, 6921, etc.
Rifle Requirements: AR15 with carbine length gas system and fixed front sight post.
Installation instructions are included.
Specifications:
- Part Number 21166-2
- Weight:
- Length:
- Free Float: Yes
- Material: Aluminum
- Finish: Black Anodizing
- Made in the USA.
