The Midwest Industries CRM Combat Rail (brand part no. MI-CRM17XR) is a free-float M-LOK handguard for the AR-15, machined from aluminum and sized at 17.5″ for full-length rifle builds that need extended rail coverage. As a one-piece free-float design, the handguard doesn’t contact the barrel, helping preserve accuracy by keeping barrel harmonics consistent shot to shot. Midwest Industries includes one M-LOK rail section with the handguard, giving an immediate Picatinny mounting point without a separate purchase.

Key Specifications

• Measures 17.5 inches long for full-length rifle coverage.
• Machined from aluminum for a durable, lightweight handguard.
• Built as a one-piece, free-float design for consistent barrel harmonics.
• Uses the M-LOK accessory mounting system.
• Includes one M-LOK rail section for an immediate Picatinny mounting point.

Frequently Asked Questions

Does this handguard contact the barrel? No, it’s a free-float design that doesn’t touch the barrel.

Is a rail section included? Yes, one M-LOK Picatinny rail section ships with the handguard.

Buy the Midwest Industries CRM Combat Rail

Extend your rifle’s rail coverage with a one-piece free-float M-LOK handguard. Order the Midwest Industries CRM Combat Rail from our Lubbock, Texas gun shop for fast, reliable shipping — or browse more AR-15 handguards.