Interface System Mk 18 Ris II Handguard 9.55" For M4A1 FDE
$516.99 at GunMag Warehouse · 7 stores
In stock
Interface System Ris II Handguard 12.25" For M4A1 FDE
Daniel Defense · Rails & Handguards
No ratings yetBest price
$516.99at GunMag Warehouse
In stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| GunMag Warehouse Best price | $516.99checked Oct 1, 2026 | In stock | Buy at GunMag Warehouse | |
| Brownells | $542.00checked Oct 1, 2026 | In stock | Buy at Brownells | |
| OpticsPlanet | $542.00Salechecked Oct 1, 2026 | In stock | Buy at OpticsPlanet | |
| Ammunition Depot | $542.00checked Oct 1, 2026 | In stock | Buy at Ammunition Depot | |
| MidwayUSA | $542.00checked Oct 1, 2026 | In stock | Buy at MidwayUSA | |
| Battlehawk Armory | $420.83Salechecked Oct 1, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $516.99checked Oct 1, 2026 | Check store | Buy at Palmetto State Armory |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $516.99 at GunMag Warehouse. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $542.00 | $542.00 | $542.00 |
| Battlehawk Armory | $420.83 | $420.83 | $420.83 |
| Brownells | $542.00 | $542.00 | $542.00 |
| GunMag Warehouse | $516.99 | $516.99 | $516.99 |
| MidwayUSA | $542.00 | $542.00 | $542.00 |
| OpticsPlanet | $542.00 | $542.00 | $542.00 |
| Palmetto State Armory | $516.99 | $516.99 | $516.99 |
Since Sep 27, 2026.
About this part
The Interface System Ris II Handguard 12.25" For M4A1 FDE is a 12.25" AR-15 handguard from Daniel Defense. It's sold by 7 stores (5 in stock), from $420.83 to $542.00. The lowest in-stock price in the last 30 days was $516.99 at GunMag Warehouse.
Fits and works with
- Gas system
- Carbine · Handguards
- Handguard length
- 12.25" · Barrels
Specifications
- Manufacturer
- Daniel Defense
- Color
- Flat Dark Earth
- Platform
- AR-15
- Gas system
- Carbine
- Length
- 12.25"
- Attachment
- M1913 Picatinny
From the manufacturer
A machined aluminum multi-rail handguard specifically designed for the Special Operations Command (SOCOM) M4A1 carbine, the RIS II enables installation of an M203 40mm grenade launcher, while allowing the barrel to free float. The M203 attaches to the bottom rail quickly and easily, without special tools or additional parts. Full-length, MIL-STD 1913 Picatinny rails provide plenty of space to add other mission-specific accessories as needed. Top rail is designed to mate continously with the receiver rail. All models come with all required mounting hardware, instructions, and three molded polymer, snap-on rail covers. RIS II requires the installation of a low-profile gas block. FSP RIS II Mfg: Daniel Defense
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