Sig Sauer M400-TREAD V2 COIL | 5.56 | 16in | RM40016BTRDV2COIL

The Sig Sauer M400-TREAD V2 COIL is a factory-equipped modern sporting rifle built for immediate range use and practical competition. It ships with a ROMEO5 Gen II compact red dot sight and several installed accessories so the rifle is ready for training or competitive stages without additional fitting. The design centers on a free-floating TREAD M-LOK handguard, a 16-inch stainless barrel with a 1:8 twist rate, and a mid-length gas system for consistent cycling and reduced perceived recoil. For a complementary optic under $1,000, the Vortex Sparc AR pairs well with the ROMEO5 for quick target acquisition and durability on the range.

Product Specifications

• The manufacturer is Sig Sauer.
• The model is M400.
• The manufacturer’s part number is RM40016BTRDV2COIL.
• The cartridge is .223 REM/5.56 NATO.
• The barrel measures 16 inches and is stainless steel.
• The barrel type is Stainless.
• The rate of twist is 1:8.
• The standard capacity is 30 rounds.
• The package includes 1 x 30-Round magazine.
• The action is Semi-Auto.
• The handguard is the Tread Enhanced M-LOK free-floating design.
• The stock is a 6-position Magpul SL-K telescoping unit.
• An optic is included: ROMEO5 Gen II compact red dot sight.
• The finish is Anodized.
• The UPC is 798681726202.

Built to be range-ready, the M400-TREAD V2 COIL puts a proven components package into a single rifle so you can spend more time training or competing and less time accessorizing. The combination of a stainless 16-inch barrel, mid-length gas system and a factory-installed ROMEO5 Gen II sight makes this an immediately usable platform for precision-paced range work and competitive courses of fire. Its M-LOK handguard and Magpul SL-K stock provide familiar ergonomics and easy attachment points for further personalization.

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