.45ACP STRIBOG carbines are very robust and reliable, utilizing advanced roller delayed blowback system which tames even .45ACP recoil with ease. The rearm is fed by durable UMP style polymer magazine. The SP45A3 oers a high degree of modularity, including picatinny rails on 12 and 6 o clock position, M-LOK® slots on 3 and 9 o clock positions which allow for installation of wide range of accessories including red dot sights, hard sights, laser devices and accessory lights. Backup ip up sights and Muzzle break are installed by default.