PMI Ceramik, JJ Ceramic, Smart Parts Tear Drop, Smart Parts All American
Ion: All American Barrel, 32 Flame Drop Fwd with ON/OFF, Smart Parts Clamp Feed Neck
Cocker: STO Ram, STO 3-way, Palmer Rock Reg, Perfect Cradle Drop, Polished Internals, Hinge Frame, Trigger Cam, 14 inch JJ Ceramic, 14 inch ACI Combo
Pretty much anything except Brass Eagle and all paint like it. If you're shooting a cocker, make sure you match your bore size to the paint you are going to shoot.
Very quiet, very accurate, very durable, looks good.
It's heavy, the bore size is not what's stamped on it.
I bought a 14 inch ACI combo barrel for my cocker a few years back. I found the barrel to be very quiet and very accurate. I have slid into bunkers, walls, trees...you name it...and the anodizing on the barrel has held up great. I have only two complaints regarding my combo barrel: 1) it's heavy, and 2) the bore size isn't what is stamped on the barrel. 1) The barrel has a stainless steel back, so it is going to be heavier than an aluminum barrel of the same length. 2) I bought my barrel in a .690 bore. It's not .690. I took a pair of mics to it and it measured .692. I thought it might be the mics, so I tried about 6 more...they all read .692. This isn't a huge difference, but it needs to be mentioned.
All in all I feel this is a very good barrel- quiet, accurate, durable. If you are looking to maintain a light setup, this isn't the barrel for you. I picked mine up for $35.00 at my local shop (the barrel had less than a case of paint through it when I bought it...so it was marked "used"). I noticed that this barrel retails for $70.00. Honestly, there are better barrels out there for the money...JJ Ceramic and All American to name a couple. Try to find a used one in good shape to get the best value.