Recent content by American Air Arms

Adjusting the Dwell does NOT require degassing. There is only pressure in the dwell circuit during the shot cycle.

Receiver looks fine. The bust disk is crushed and will never seal.

There is enough internal space in the magazine design to accommodate the 223 59gn. Utilizing this space makes the mag. suitable for slugs only. Longer than 59 gn can be single loaded with a SST. 59 gn altaros will shoot at 950 fps with a shot count of approx. 20

EVOL was designed with one of the deepest magazine wells from the get go. It will accommodate all current ammo that the hps can push at reasonable velocities. Maximum projectile length for the 22 and 30 calibers is 0.530". Standard mags will fit all commonly used 40-45 gn 218 cal. slugs and...

Optimized for pellets. Light slugs like the RMR are very good. Any, slug over .300 is going to be very tight.

Twist ?

Yes, absolutely.

Bill, We changed the method of honing which gave us a much better bore, this advantage allowed the move to a tighter bore which equates to shallower lands. A single point cut rifled barrels will improve with a proper lead lap done by hand. Something that all AAA barrels get here at our shop...

Guys, I do appreciate your patience and do give a p**P. Barrel manufacturing has been a most challenging endeavor. Early on, we had some real shit slip through. We have had several challenges to overcome before these early problems could be completely eliminated. Now that we have overcome...

Degas by loosening the burst disk 1/2 turn before removing the Foster fill port.

There are some product line changes coming that I am very excited about. The EVOL line has evolved into the hps and the standard EVOLs line is being retired. There are very good reasons for this, mainly, the similarities and differences are too large. The hps deserves it own identity and the...

They have 5 due at the end of this month. Check with their sales staff to see what is available

Yes, the EVOL hps BR, it will not be called the Apex. Apex is variant exclusive to Airgun West.

As Azrover stated a 12 or 20 fpe 177 on the EVOL platform is not an easy task. In a nutshell, the valve, port volume, and plenum are way too large to operate at those power levels consistently. Aslo hammer energy is also too much. While I was successful a few years ago with some highly...

90D Viton is the best for that location. Newer EVOLs use a teflon backup ring with a 75D Viton O-ring which essentially eliminates extrusion. The is an older regulator body. The gap is normal and is intentional. O-Rings need to be fully presented to the high pressure air to properly seal...