
Availability: In Stock
The Midwest Industries Slimline AR-15 handguard in 15" length is a purpose-built free-floating rail system designed for shooters who want to modernize their platform without bulk. Built from 6061 aluminum and hard coat anodized in black, this handguard strips away excess material while keeping attachment options where they matter—three sides of M-LOK slots and a full-length Picatinny rail on top. At just 1.5" outside diameter, it won't slow you down on the bench, in the field, or on the line, and the interior diameter of 1.3" ensures a solid lock on your barrel.
Installation is straightforward thanks to the included 4140 heat-treated barrel nut and wrench. The real standout is Midwest Industries' proprietary 4140 heat-treated torque plate—engineered to handle repeated removal and installation cycles without galling or stripping. Two integral anti-rotation QD sling sockets keep you mounted and ready. The rail comes fully dehorned and deburred, so you won't fight sharp edges when running it in tight positions or under stress.
Made in the USA and built for duty, this handguard delivers the versatility AR shooters demand without compromising a lightweight build. A 5-slot polymer M-LOK rail is included, ready to mount optics, lights, and accessories immediately out of the box. Whether you're building a precision rifle, a 3-gun stage gun, or a hunting AR that needs to stay nimble, the 15" Slimline offers the real estate to work with while keeping things as slim as an AR can reasonably be.
| Brand | Midwest Industries |
| Handguard Type | Free-Floating Rail System |
| Length | 15" |
| Material | 6061 Aluminum |
| Finish | Type 3 Hard Coat Anodized, Black |
| Outside Diameter | 1.5" |
| Inside Diameter | 1.3" |
| Top Rail | MIL-STD 1913 Picatinny |
| Side/Bottom Slots | M-LOK (three sides) |
| Sling Sockets | Two integral anti-rotation QD sockets |
| Barrel Nut | 4140 heat-treated with patented torque plate |
| Includes | Barrel nut, installation wrench, 5-slot polymer M-LOK rail |
| Country of Origin | USA |
The package includes the 15" handguard, a 4140 heat-treated barrel nut, an installation wrench, and a 5-slot polymer M-LOK rail ready to accept accessories.
Yes. The Slimline uses a standard barrel nut interface. A 4140 heat-treated barrel nut and installation wrench are included with the handguard.
The handguard features M-LOK slots on three sides and a full-length Picatinny rail on top. This gives you flexibility to mount optics, lights, vertical grips, and other AR accessories where you need them.
The Slimline measures 1.5" in outside diameter and 1.3" in inside diameter, designed to minimize bulk while maintaining strength and mounting versatility. At 15" in length, it provides plenty of real estate without unnecessary width.




SKU: 115696679 • Width: 3.9in • Height: 3.7in • Depth: 16.7in • Weight: 1.44oz





Availability: In Stock
The Midwest Industries Slimline AR-15 handguard in 15" length is a purpose-built free-floating rail system designed for shooters who want to modernize their platform without bulk. Built from 6061 aluminum and hard coat anodized in black, this handguard strips away excess material while keeping attachment options where they matter—three sides of M-LOK slots and a full-length Picatinny rail on top. At just 1.5" outside diameter, it won't slow you down on the bench, in the field, or on the line, and the interior diameter of 1.3" ensures a solid lock on your barrel.
Installation is straightforward thanks to the included 4140 heat-treated barrel nut and wrench. The real standout is Midwest Industries' proprietary 4140 heat-treated torque plate—engineered to handle repeated removal and installation cycles without galling or stripping. Two integral anti-rotation QD sling sockets keep you mounted and ready. The rail comes fully dehorned and deburred, so you won't fight sharp edges when running it in tight positions or under stress.
Made in the USA and built for duty, this handguard delivers the versatility AR shooters demand without compromising a lightweight build. A 5-slot polymer M-LOK rail is included, ready to mount optics, lights, and accessories immediately out of the box. Whether you're building a precision rifle, a 3-gun stage gun, or a hunting AR that needs to stay nimble, the 15" Slimline offers the real estate to work with while keeping things as slim as an AR can reasonably be.
| Brand | Midwest Industries |
| Handguard Type | Free-Floating Rail System |
| Length | 15" |
| Material | 6061 Aluminum |
| Finish | Type 3 Hard Coat Anodized, Black |
| Outside Diameter | 1.5" |
| Inside Diameter | 1.3" |
| Top Rail | MIL-STD 1913 Picatinny |
| Side/Bottom Slots | M-LOK (three sides) |
| Sling Sockets | Two integral anti-rotation QD sockets |
| Barrel Nut | 4140 heat-treated with patented torque plate |
| Includes | Barrel nut, installation wrench, 5-slot polymer M-LOK rail |
| Country of Origin | USA |
The package includes the 15" handguard, a 4140 heat-treated barrel nut, an installation wrench, and a 5-slot polymer M-LOK rail ready to accept accessories.
Yes. The Slimline uses a standard barrel nut interface. A 4140 heat-treated barrel nut and installation wrench are included with the handguard.
The handguard features M-LOK slots on three sides and a full-length Picatinny rail on top. This gives you flexibility to mount optics, lights, vertical grips, and other AR accessories where you need them.
The Slimline measures 1.5" in outside diameter and 1.3" in inside diameter, designed to minimize bulk while maintaining strength and mounting versatility. At 15" in length, it provides plenty of real estate without unnecessary width.
SKU: 115696679 • Width: 3.9in • Height: 3.7in • Depth: 16.7in • Weight: 1.44oz



