5 stars for delivery and both kits were accurate to their descriptions. I used for 2 different form 1 projects and the results are pretty mediocre performance. Machining is great, design is just poor for non solvent trap cleaning applications. The modular ones look fantastic but perform exceptionally poorly. Way too much material so crazy heavy and internal volume is consumed with excessive thickness everywhere. By excessive I mean 3x thicker than it should be for stainless or Ti. I can machine internals in place of the pressed stainless cups for one (those are poor by design for a pistol application other than 22) but the modular there is no fixing. So I wasted a stamp on the modular one with the cups that screw together. You could make a decent flash can out of it but that design is poor for anything else. I bored to. 060 over projectile size and then clipped each cone with a ball nose apps half size of boreā¦. I did my part right. It is also a very time consuming setup indicating each piece of the modular in a 4 jaw chuck. The booster worked pretty well and I like how it was made.