or at least excessive compulsive. ive got a pile of ars but just love building them. ordered 2 lowers and a 9mm upper yesterday. ones going on a 7.5 556 i had in a case with a bo ar pistol to swap back and forth and also in that case is a 22lr adapter. it was used more for 22lr than for 556. the second one will be a 9mm 7.5. ive got a 4.5 and it has a suppresser on it. my 4.5 9 and 45 are a bit to handle. especially on binary. the suppressor helped the 9 a lot and i need one for my 45. bit the 7.5 and 8.5 guns are just easer to put lead on target fast. i wish i would have went that way from the git go with the first 9 and the 45. the real devastator on binary is my 16 cmmg 9mm. its the only are that i didnt build and its an absolute tack driver. ive shot 2" 100 yard groups with it at a 100 yards with cast bullets and a 3x burris prism sight!! id bet its moa with a 3x9 scope. but honestly it isnt shot that much. the pistols are just more fun. but it is a great practice gun for a full sized gun. being a blow back with a heavy bolt if i blindfolded you and doubled up on ear protection you couldnt tell the difference in recoil and cast bullets and 1/4 the powder its much cheaper to shoot