rifle. The configuration provides increased accuracy by allowing a barrel length of , but minimizes the overall length of . Weight is further reduced without sacrificing accuracy by the use of a free-floating fluted barrel. The muzzle is fitted with a double-baffle muzzle brake, which is claimed to reduce recoil by up to 30%. The "in-line" design of the barrel-receiver group also directs recoil rearwards in a straight line, minimizing muzzle flip. A sturdy adjustable bipod is fitted to the front of the fore-end. The rifle features a fully adjustable buttstock and cheek riser. A folding/adjustable monopod located behind the magazine on the inside of the buttstock can be used to support the rifle in firing position during extended periods of deployment. No iron or emergency sights are provided; a MIL-STD-1913 Picatinny rail is mounted above the centerline of the barrel, over the receiver area for mounting various optical sights. The standard telescopic sight is a Leupold 4.5–14×50, with sight grid mil-dot reticle, parallax correction and an adjustment range of 100 MOA. Variants Alex-338 prototype Around 2007, OBRSM Tarnów has begun development of a .338 Lapua Magnum chambered model under the Alex-338 development designation (the manufacturer's code for the basic Alex/Bor was changed then to Alex-762). Early in 2008 the Mechanical Equipment Research and Developing Centre in Tarnów completed the design work and in June 2008 the first prototype was assembled. The model was publicly presented at the MSPO in Kielce, Poland in September 2008. The .338 Lapua Magnum version of the Bor is externally slightly different from the earlier 7.62 mm rifle . The lower assembly has a different shape. The Alex-338 weighs 6.5 kg without aiming optics and 7.3 kg with the standard Leupold telescopic sight mounted. It uses the same 5-round detachable box magazines as the Finnish Sako TRG-42 sniper rifle. Like the 7.62 mm Bor the Alex-338 shares some characteristics with the French PGM Précision PGM 338 rifles. The eventual introduction of weapons chambered for the specialized .338 Lapua Magnum rimless bottlenecked centerfire cartridge developed for military long-range sniper rifles will be a novelty in the Polish Armed Forces. Alex Tactical Sport 308 Winchester The Alex Tactical Sport 308 Winchester is a variant based on the Polish Armed Forces 7.62×51mm NATO Bor rifle. It is chambered for the .308 Winchester cartridge – which is very similar to the 7.62×51mm NATO cartridge – and is intended for