Videos tagged with Aftermarket Lower

This video showcases the MP5K with a Leber V2 lower from BS Squirts. The presenter, Jordan from PoorBoy Arms, attempts to run the firearm without a traditional break-in period, aiming for speed. Initial attempts reveal a malfunction, which is suspected to be magazine-related. The presenter acknowledges the need for a break-in period and plans to re-evaluate after further testing with the factory lower.