It is a well known fact that short barrel firearms are snappy when shooting. So snappy in fact that responsibly armed Americans do not enjoy training with them. Well Trinity Nevada has engineered a way to put fun back on the menu. Anteros is a patented porting system using our SCRAM technology to reduce recoil into a fun and manageable level. The hotter the load the flatter it will shoot up to +P ammunition. All you have to do is send us your slide / barrel and we will machine it, coat it and test it.