Daniel Defense
Daniel Defense RIS III 10.5"
10.55 in M-LOK evolution of the RIS II, built for carbine-gas short-barrel uppers
Quick Specs
- Price
- $582
- Weight
- 13.7 oz
- Brand
- Daniel Defense
- Category
- handguard
Features
- •M-LOK, 7 positions
- •10.55" length
- •6-bolt bolt-up system
- •13.7 oz
- •Continuous 1913 top rail
Capability Boosts
Recommended For
+15 more
Compatibility Tags
Overview
The RIS III is Daniel Defense's M-LOK follow-on to the RIS II, and the 10.55" version is the short one, sized for carbine-gas uppers in the 10.3" to 11.5" range. Daniel Defense keeps the parts of the RIS II that earned the rail its reputation with USSOCOM since 2006: the free-float barrel design, 6061-T6 aluminum construction, the patented six-bolt bolt-up system, Grade 8 fasteners, and an uninterrupted mil-spec 1913 top rail.
What changes is everything below the top rail. Instead of Picatinny on three sides, the RIS III carries seven M-LOK attachment positions along the length of the handguard, plus integral QD swivel attachment points on both sides. That is where the weight goes: 13.7 oz for this length, against 14.1 oz for the shorter 9.55" MK18 RIS II quad rail.
The bolt-up system is backward compatible with the RIS II, using the same barrel nut and bolt-up plate, and the RIS III upper rail is compatible with the RIS II lower rail. For a builder already running RIS II hardware, that means the swap is a rail change rather than a barrel nut job.
Key Features
- Seven M-LOK attachment positions along the handguard
- Uninterrupted mil-spec 1913 Picatinny top rail
- Aircraft-grade 6061-T6 aluminum construction
- Patented 6-bolt bolt-up system with steel barrel nut
- Grade 8 military specification fasteners
- Integral QD swivel attachment points on both sides
- Free-floating barrel design
- Backward compatible with the RIS II bolt-up system
Pros
- +M-LOK sheds the weight and bulk of the RIS II quad rail
- +Same 6-bolt bolt-up interface as the RIS II, so the barrel nut carries over
- +Continuous top rail for night vision and clip-on optics
- +Integral QD sling points on both sides
- +13.7 oz is competitive with dedicated lightweight rails
Cons
- −$582 is well above most M-LOK rails of this length
- −Bolt-up installation needs the barrel nut wrench, not a drop-in job
- −Requires a low-profile gas block; this is not the fixed front sight post configuration
- −Heavier than skeletonized rails that give up the RIS III's rail interface
Detailed Specifications
- Material
- Aircraft-grade 6061-T6 aluminum
- Finish
- Black
- Length
- 10.55 inches
- weight
- 13.7 oz
- width
- 1.95 inches
- height
- 2.16 inches
- Inner Diameter
- 1.34 inches
- mountingSystem
- Patented 6-bolt bolt-up system with steel barrel nut
- Rail Type
- M-LOK sides and bottom, continuous 1913 Picatinny top rail
- gasSystemCompatibility
- Carbine length
- slingMounts
- Integral QD swivel attachment points, both sides
- sku
- 01-004-03261-006
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Build Your Custom Configuration
Add the Daniel Defense RIS III 10.5" to your build and see how it enhances your platform.