The Poles really got things nailed down, unlike some others. Most likely because they do have a real shooting culture there. Radom MSBS is having quality issue, so their parent company PGZ is using another one of its company ZMT to create another system to work as insurance. Beryl is on the way out eventually.
All the right stuff. AR Lower ergonomics. Monolithic Extrusion tube upper with bolted on internal steel rail. Barrel trunnion is bolted on with apparently 6 or 4 torx screws on each side. Not excessively hight bore to rail height - relatively compact for this kind of gun.
300blk, and 5.56, 7.62NATO in the 25 version.
This is what properly designed system should look like.


All the right stuff. AR Lower ergonomics. Monolithic Extrusion tube upper with bolted on internal steel rail. Barrel trunnion is bolted on with apparently 6 or 4 torx screws on each side. Not excessively hight bore to rail height - relatively compact for this kind of gun.
300blk, and 5.56, 7.62NATO in the 25 version.
This is what properly designed system should look like.





















































