The Echelon 4.0C Comp comes standard with two magazines — a flush-fit, 15-round magazine; and an extended, 18-round variant. Both magazines feature a scratch- and wear-resistant blacked-out coating for rugged durability and hard use. Additionally, the Echelon 4.0C Comp is offered in reduced-capacity 15- and 10-round models for restricted locales. MSRP for all variants is $749.