The X-1 Puma Sniper rifle is basically the same as X-1 Puma tactical just a longer barrel, shorter mag, different ammo type, has a bipod, and has 2 extra adjustable lenses in the scope. The longer barrel greatly out matches the Puma tactical's range, from 150-180 ft (Puma tactical) to 1 mile to 1.5 miles. It has a 5 round mag. It uses 1.6 cm by 5.5 cm, case-less round with explosive tip **note** the bullet is 4 of the .8 cm by 5 cm bullets [fired by the Puma tactical] put together. therefore the tip has 4 time the amount of explosive power as the Puma tactical's bullet. The sniper version came out 3 months later.