Standard Manufacturing STD-15 Carbine .223 Remington 5.56 NATO Rifle

Description

Product Overview

The Standard Manufacturing STD-15 Carbine is a versatile AR-pattern rifle chambered for both .223 Remington and 5.56 NATO. It features a 16-inch 4150 CMV heavy-profile barrel with a 1:8 twist, M4 feed ramp, direct-impingement carbine-length gas system, and an A2 flash hider. Its A3 mil-spec 7075-T6 aluminum upper receiver, low-shelf aluminum lower receiver, salt bath nitride bolt carrier group, and 13-inch M-LOK handguard provide a durable foundation for defensive, training, and recreational applications. The Rogers Super Stock adjusts the overall length from 32 inches to 35.5 inches, while the optic-ready receiver supports a wide range of sighting systems. One 30-round magazine is included.

Key Features

• Chambered for .223 Remington and 5.56 NATO for broad ammunition compatibility
• 16-inch 4150 CMV heavy-profile barrel with a 1:8 twist and M4 feed ramp
• Direct-impingement carbine-length gas system for familiar AR-pattern operation
• 13-inch M-LOK handguard provides flexible accessory mounting options
• A3 mil-spec 7075-T6 aluminum upper receiver with optic-ready top rail
• Salt bath nitride bolt carrier group made from 8620 steel for durable operation and maintenance resistance¹

The Standard Manufacturing STD-15 Carbine combines proven AR-pattern features with practical adjustability and accessory compatibility for a wide range of shooting applications.