Got the Accurate Mag DBM today. Needed a little bit of inletting at the back of the DBM. They did provide a set of screws that were longer than the originals. The website says they don't provide screws. The short screw was a little too long so I had to grind it down. The long screw was way too short so I had to buy a 2" screw and grind that one down too. All 3 of my Magpul AICS mags fit in the DBM. The fit is tight but not too tight. Overall overall nice upgrade for $150. Took me about 2 hours to install it.