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RIS II Handguard 12.25" for M4A1 Black
RIS II Handguard 12.25" for M4A1 FDE
RIS II Handguard 12.25" for M4A1 FDE
RIS II Handguard 12.25" for M4A1 FDE
RIS II Handguard 12.25" for M4A1 FDE
FSP RIS II Handguard 12" for M4A1 FDE
FSP RIS II Handguard 12" for M4A1 FDE
FSP RIS II Handguard 12" for M4A1 FDE
FSP RIS II Handguard 12" for M4A1 FDE
RIS II Handguard 12.25" for M4A1 Black
RIS II Handguard 12.25" for M4A1 Black
RIS II Handguard 12.25" for M4A1 Black
RIS II Handguard 12.25" for M4A1 Black
Mk 18 RIS II Handguard 9.55" for M4A1 FDE
Mk 18 RIS II Handguard 9.55" for M4A1 FDE
Mk 18 RIS II Handguard 9.55" for M4A1 FDE
Mk 18 RIS II Handguard 9.55" for M4A1 FDE
Mk 18 RIS II Handguard 9.55" for M4A1 FDE
MK18 RIS II Handguard 9.55" for M4A1 Black
MK18 RIS II Handguard 9.55" for M4A1 Black
MK18 RIS II Handguard 9.55" for M4A1 Black
MK18 RIS II Handguard 9.55" for M4A1 Black
RIS II Handguard 12.25" for M4A1 Black
RIS II Handguard 12.25" for M4A1 FDE
RIS II Handguard 12.25" for M4A1 FDE
RIS II Handguard 12.25" for M4A1 FDE
RIS II Handguard 12.25" for M4A1 FDE
FSP RIS II Handguard 12" for M4A1 FDE
FSP RIS II Handguard 12" for M4A1 FDE
FSP RIS II Handguard 12" for M4A1 FDE
FSP RIS II Handguard 12" for M4A1 FDE
RIS II Handguard 12.25" for M4A1 Black
RIS II Handguard 12.25" for M4A1 Black
RIS II Handguard 12.25" for M4A1 Black
RIS II Handguard 12.25" for M4A1 Black
Mk 18 RIS II Handguard 9.55" for M4A1 FDE
Mk 18 RIS II Handguard 9.55" for M4A1 FDE
Mk 18 RIS II Handguard 9.55" for M4A1 FDE
Mk 18 RIS II Handguard 9.55" for M4A1 FDE
Mk 18 RIS II Handguard 9.55" for M4A1 FDE
MK18 RIS II Handguard 9.55" for M4A1 Black
MK18 RIS II Handguard 9.55" for M4A1 Black
MK18 RIS II Handguard 9.55" for M4A1 Black
MK18 RIS II Handguard 9.55" for M4A1 Black
None
MadeInUsa MadeInUsa OFF

DANIEL DEFENSE - AR-15 RAIL INTERFACE SYSTEM II

6 Reviews
Color
Item Length (Inches)
Brownells #
100005806, 100005807, 100005808, 100006163
MFR #
01-004-08001, 01-004-08030, 01-004-08001-006, 01-004-08020-011
UPC
852548002820, 852548002561, 852548002813, 815604014052
$516.00
Coupon Code
Purchase Limit Help

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What is the DANIEL DEFENSE - AR-15 RAIL INTERFACE SYSTEM II?

DANIEL DEFENSE AR-15 RAIL INTERFACE SYSTEM II

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 models have a cutout in the top rail that allows retention of the standard A2 gas block/front sight tower on a carbine-length gas system. MK 18 RIS II is specifically designed for an M4A1 carbine with Mk18 CQBR (Close Quarters Battle Receiver) upper receiver and 10.3" barrel. Provides barrel free-float and expanded accessory mounting options, while deleting M203 mounting capability. Requires low-profile gas block.

FEATURES:

  • Aircraft Grade 6061-T6 Aluminum
  • Free-Floating Barrel Design For Increased Accuracy
  • Two-Piece Design for USSOCOM Allows For the Attachment of an M203 Grenade Launcher When Lower Rail Section is Removed.
  • Battle-Tested, 6-Bolt Bolt-Up System Securely Attaches Handguard to the Upper Receiver
  • Grade 8 Military Specification Fasteners
  • Uninterrupted Upper Rail Platform & Mil-Spec 1913 Picatinny Rails
  • Mil-Spec Type III Hard Coat Anodized Finish (FDE or Black)

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AR-15 RAIL INTERFACE SYSTEM II REVIEWS

5.0
6 Reviews
5 Stars
100%
4 Stars
0%
3 Stars
0%
2 Stars
0%
1 Stars
0%
Reviews Summary
Customers rave about the Daniel Defense RIS II Handguard, praising its exceptional quality, fit, and finish. Many consider it among the best options for AR-15 upgrades, although some feel the price is steep due to features like grenade launcher compatibility. Most users appreciate the extended handguard length for improved control, while a few note its significant weight as a downside.
What Reviewers Are Saying
Product Quality
70%
Reviewers consistently highlight the top-tier quality of the RIS II Handguard, often describing it as well-made and solid. Many state it meets military specifications, reinforcing its premium reputation.
Fit and Finish
60%
The exceptional fit and finish of the handguard receive positive remarks, with users praising its compatibility with their rifles and the aesthetic appeal it adds to their setups.
Value for Money
50%
While the handguard is considered pricey by some, numerous reviewers express that its quality justifies the cost. They appreciate that it is designed for professional applications, making it a worthwhile investment.
Length and Control
55%
Many users appreciate the increased handguard length, which enhances controllability and allows for better equipment mounting, particularly during competitive shooting scenarios.
Weight
25%
A few reviewers mention the significant weight of the handguard as a downside. Though suitable for military use, the extra weight may not be ideal for all users, particularly in competitions.
5
a fascinating product
A really well made product. It's been a while since I've had it in stock and bought it, and I love it!
by SOKHYUN JEONG on July 11, 2024
Verified Purchase
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5
Perfect Upgrade!
Been waiting for the DD RIS II FSP Handguard to come back in stock for a while, but once it did, it was an impulse purchase. This is one of the best upgrades I've installed on my Colt LE6920. In my experience, Daniel Defense products are top-tier quality and, although pricey, well worth it. I've used several different quad rail handguards over the years, and this is by far one of the best. The fit/finish is excellent and I could not be happier!
by Gun Guy on September 17, 2021
Was this review helpful? 0
5
great product
one reviewer on this product thought the grenade launcher makes it so expensive.wrong. i own one and its hands down the best rail on the market for any application. the fde coating is a different story. the high cost pertains to one reasn:daniel defense makes it for socom. if u want the best there is, then prepare to pay a lil more than average. it all depends on if u ur willing to step up to the tier 1 level when it comes to buying parts for your AR
by Mr Nowhere 2 B Seen on October 27, 2013
Was this review helpful? 1
5
Great Product
This is a legitimate military spec product. In my opinion it is one of the best of it's type. I would like to mention the Flat Dark Earth (FDE) color because it can be hard to tell the color from pictures. It is actually kind of a dark copper brown. I think it looks great but it isn't anything like the FDE of many other products like the Magpul line. The grenade launcher compatibility feature is not particularly useful to me. I bet it is great for the professionals that need it. In my opinion some of the other free float rails out there that are not grenade launcher compatible have a little "cleaner" aesthetic look and cost less. I think I paid a little more than I needed to because of the grenade launcher feature. Don't get me wrong I gave the RIS II five stars because it is a five star product it just may be more than some people may need.
by JXL on January 10, 2013
Was this review helpful? 0
5
Best upgrade I ever made
I've been using this on my AR for competition shooting for about four months now. The extra handguard length I gained over a traditional carbine handguard really helps with controllability. I can mount a light far enough forward to reduce barrel for night shoots, and I can use a thumb over bore grip out past the FSP. Best thing is, I now have a 12" free-floated handguard on my carbine, and I didn't have to buy a low-profile gas block and a rail-mounted front sight or have a gunsmith shave down my front sight to fit under the rail.
by IZinterrogator on June 08, 2011
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Customer Questions
6 Questions