The SR-15 E3 MOD 2 collection’ five.56mm NATO barrel is made for army quality sturdiness, and is also no cost-floated inside a URX4 M-LOK handguard. An enhanced E3 spherical-lug bolt design and style equally improves function and improves bolt daily life much further than the sector standard.S. Govt's rigid benchmarks for that production of MilSp