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The Daniel Defense RIS III 13" FSP takes the two-piece RIS II design used by U.S. Special Operations Command (SOCOM) since 2006 and reduces weight while adding M-LOK attachment. It keeps the free-float barrel design, 6061-T6 aircraft-grade aluminum construction, and an uninterrupted upper rail with a mil-spec 1913 Picatinny top. Seven M-LOK attachment points run along the handguard, and integral QD swivel attachment points are on both sides.
The handguard attaches with the proven 6-bolt bolt-up system and a steel barrel nut. It is backward compatible with the RIS II bolt-up system and uses the same barrel nut and bolt-up plate. The RIS III upper rail is fully compatible with the RIS II lower rail. Available in Black and Flat Dark Earth.
Note: M203 hangers will interfere with pinned and welded muzzle devices. Daniel Defense suggests contacting a qualified gunsmith for RIS III installation on any firearm or upper with a pinned and welded muzzle device.
Features
- Rail Interface System III (RIS III) 13" FSP
- Based on the RIS II used by SOCOM since 2006
- Free-floating barrel design
- Designed for carbine gas systems
- M-LOK attachment at 7 positions along the handguard
- Integral QD swivel attachment points on both sides
- Uninterrupted upper rail and mil-spec 1913 Picatinny rail
- 6-bolt bolt-up system with steel barrel nut
- Grade 8 military specification fasteners
- 6061-T6 aircraft-grade aluminum
- Backward compatible with RIS II bolt-up system; uses the same barrel nut and bolt-up plate
- RIS III upper rail is fully compatible with RIS II lower rail
- Rail length: 12.96"
- Width: 1.95"
- Height: 2.16"
- Inside diameter: 1.34"
- Product weight: 16.38 oz
- Color: Flat Dark Earth
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