Daniel Defense M4A1 RIS II 12.25" 6061 T6 Aluminum Forend Rail Interface System, Black - 408001006
Click to see full view
Daniel Defense
Overview
The Daniel Defense M4A1 RIS II is a 12.25-inch handguard designed for the AR-15 platform, crafted from durable 6061-T6 aluminum. This handguard features a Picatinny mounting interface, allowing builders to securely attach various accessories, enhancing functionality and customization. It is commonly found in gas system builds that utilize the carbine length and chamber the 5.56 NATO caliber, making it a solid choice for versatile configurations.
Specifications
Daniel Defense M4A1 RIS II 12.25" 6061 T6 Aluminum Forend Rail Interface System, Black - 408001006
August 2026 on GunPartPicker
Daniel Defense M4A1 RIS II 12.25" 6061 T6 Aluminum Forend Rail Interface System, Black - 408001006 ranked #86 of the 243 handguards builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #90 of the 683 handguards builders have added. Builds with this handguard are mostly chambered in 5.56 NATO (83%, then .223 Wylde 17%), split between carbine-length (40%) and mid-length (40%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today both retailers we track have it in stock. The best price crept up from $516.87 to $542 over August 2026. Buying today, the lowest price is $516.99 at Palmetto State Armory, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
Not sure which handguard to pick?
We ranked every handguard by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Handguard Trends →Check it against the live catalog:
Frequently Built With
The part most often added in each category by the 12 builds that include this one
Daniel Defense 14.5" 5.56 NATO CHF Mid-Length 1:7 Government Contour AR-15 Barrel With Gas Block
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers
WMD Guns 5.56 AR-15 Bolt Carrier Group Without Hammer - NIB-X Finish - Black
B5 Systems Type 23 P-Grip - Coyote Brown
Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all 4 →Builds in the community that include the Daniel Defense M4A1 RIS II 12.25" 6061 T6 Aluminum Forend Rail Interface System, Black - 408001006
| Build | Parts | Total |
|---|---|---|
 | 9 | $2542.06 |
 | 16 | $1865.50 |
 | 11 | $1608.94 |
 | 16 | $1238.81 |
No reviews yet. Be the first to review this product!