The CZ 805 BREN is the centerpiece of the Czech Republic’s “Soldier of 21st Century” Project. It’s a “unified, modular weapon system enabling accommodation of additional devices with the prospect of further improvements,” upi.com reports. In other words, the gun can fire both 7.62 x 39mm and NATO standard 5.56 x 45mm cartridges. How’s that? Glad you asked. The “CZ 805 features quick-change barrels . . . to change calibers and barrel lengths according to the mission profile,” worldguns.ru reports. “The basic action uses fairy [sic] common piston-operated gas action with manual gas regulator, and a rotating bolt locking. For each proposed caliber, there is a separate bolt with appropriate dimensions.” Not to mention 6.8×43 Rem SPC, ’cause that possibility hasn’t been mentioned in some time. If you’re thinking that the CZ 805 BREN is FN SCAR clone, to paraphrase the B52s, WELL IT ISN’T! Much. The first BREN guns get Czeched-out by the troops in July.