User:SheWhoKnows/BR-55 Squad Support Variant

In 2551, the UNSC commisioned the development of an external SOPMOD kit for the newly issued BR-55, codenamed BR(HC). The project evolved over time, and eventually became a modified stock and receiver kit. The main difference of the BR-55 Squad Support kit from the original was the addition of a thicker, polycarbonite buttstock and a front dual-stablilizer fin underneath the barrel. This could be turned upside-down to act as a bipod for the weapon. The receiver was also changed; a fire-control switch was added to allow the BR-55 to fire on fully automatic. The magazine slot was expanded to allow the weapon to accept belt-fed chains of .45 caliber ammunition.