Rosco handguards are machined from 600 series extruded aluminum and are designed to be strong enough for any environment. The narrow cross-section of the hand guard provides for an excellent ergonomic grip while the M-LOK mounting system provides a smooth, hand-friendly surface in place of Picatinny rails.
- 6000 series extruded aluminum Milspec Type 3 Class 2 hard black anodized rail
- 7075 aluminum Type 3 Class 2 hard anodized barrel nut
- Anti-rotation tabs align rail to upper receiver
- No barrel nut shims required for installation
- Does not contact or apply side loads to gas tube
- Inner Diameter of handguard – 1.315″
- MLOK Slots on all flat sides (7)
- Includes barrel nut wrench
- Barrel nut diameter- 1.378″
- Compatible with most known low profile gas blocks
- 10.0 ounces – total weight including mounting hardware
- Made & Assembled in USA





MI (verified owner) –
Barrel nut fitment is so tight that I had to tap it on with a nylon mallet, then after getting everything mocked up, it couldn’t get it off before i did final assembly on the upper. I had to hit the back edge with a brass punch hard enough that it kinda rolled the edge and deformed enough to mess up the anodizing. Kinda pissed. I had no choice… I was pulling so hard my whole work bench moved.
sgtwilliamsma (verified owner) –
I had finally purchased the K9 barrel that had been on backorder. I had been looking for a handguard and upper. I decided to stay with Roscoe. I ordered this handguard for my AR build. I liked how the handguard clamped to the barrel nut. I had no issues in installing it to the Roscoe upper I also purchased. It is very well made. I have already put over a hundred rounds through it. It is solid made and functions like it’s supposed to. I am completely satisfied with Roscoe.
roshan chatter (verified owner) –
The barrel nut and Handguard fit very snug. Very easy install instruction. I’ve recently bought another Handguard and installed it as well. Very solid and worth the $$$. Will def buy again!!!