Caption – machine translated from Polish:
Intensive end of the month!
On May 28, in # 15GBZ at the training facilities in Giżycko, a tactical and fire competition of reconnaissance sub-units under the name Zawisza 20 took place. Four-person teams from companies and reconnaissance platoons from #RycerskaBrygada and two British teams from NATO enhanced Forward Presence Battle Group Poland while overcoming the tactical loop, they had to face with tasks such as directing the team’s fire in defense, knowing the Medevac and Call for Fire procedures, overcoming a water obstacle, or performing a team attack.
The FB Beryl in 5.56mm NATO.
I think this is the Polish UKM-2000, designed and manufactured in Poland by Zakłady Mechaniczne Tarnów. It is chambered in 7.62×51 NATO.
If you haven’t seen it, check out the very special Bor Sniper Rifle in Polish Snipers & Shooting Tactics.