I currently have the PDW and the 10.3 inch Edge Pistols. It is my understanding the both of these pistols were initially equipped with BUIS. In my case only the 10.3 had BUIS's installed, the PDW did not. The trigger assemblies apparently have also been modified. I had read that the omission of...
I have both the 5.5 inch Edge PDW and the 10.3 inch Edge Pistol. I installed a Maxim Defense Hate Brake on the 10.3. Used a 3/8 in socket extension, Magpul BEV Block and a Vise. I have never attempted removing the brake from the 5.5 so please keep us posted.