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Strike Industries built this quad rail for guys who want to upgrade their carbine without tearing the whole gun apart. The M4 Quad Rail Handguard swaps out that factory plastic handguard for a one-piece aluminum unit that clamps onto your existing delta ring and front sight block, no barrel nut swap or free float conversion required. It's a straightforward way to add real mounting real estate to a basic M4 profile setup.
Rails Everywhere on the M4 Quad Rail Handguard You get full Mil-spec Picatinny rail at the 3, 6, 9, and 12 o'clock positions, so lights, lasers, foregrips, and vertical grips all have a solid spot to live. Strike Industries also added extra rail space up top that sits flush with the front sight post, which opens up more real estate for optics mounts or a pressure switch without crowding your sight picture.
Drop-In Fit Without the Gunsmith Visit The patent-pending mounting system is what sets this handguard apart from the older two-piece clamshell designs. It uses a front barrel clamp and a couple of included wrenches to lock everything down tight with no wobble, and the aerospace-grade aluminum keeps the whole package light at just 11.6 ounces. Since it's a drop-in design, most people can get this installed at the workbench in under an hour with basic tools.
Sling Mounts Built Into the Quad Rail Handguard Instead of forcing you to add a separate sling mount, Strike Industries built two QD sockets right into the rear of the handguard at the 3 and 9 o'clock positions. That means you can run a single point or two point sling straight off the handguard itself, and switch between them in seconds without extra hardware taking up rail space elsewhere on the gun.
It's built for carbine-length AR-15/M4 platforms running a direct impingement gas system with a front sight block and delta ring. If your rifle has a low profile gas block and a free float handguard already, this one isn't going to bolt on since it's designed around that traditional carbine front sight assembly.
Yes, that's the whole point of the drop-in design. It comes with the T27 and T20 L-wrenches and Loctite you need, and most people knock it out at home with basic tools in well under an hour.
No, the additional Picatinny rail up front sits flush with the front sight post rather than sticking up above it. It's there to give you more room for a light or laser without crowding your line of sight to the front sight.
It comes in at 11.6 ounces, which is light for an aluminum quad rail with four full-length rails and integrated QD sockets. You'll notice a difference in balance compared to a bare plastic handguard, but it's not going to turn your carbine into a front-heavy brick.
| UPC | 605258406606 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | SI-M4-HG-BK |
| Color | Black |
| Model | |
| Product Type | Handguard |
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