• Watch Out for Scammers!

    We've now added a color code for all accounts. Orange accounts are new members, Blue are full members, and Green are Supporters. If you get a message about a sale from an orange account, make sure you pay attention before sending any money!

differerence

  1. jephs422

    differerence between gas and piston AR uppers

    I'm building another upper but up until recently had never seen the piston style uppers. Can I build this style with a regular bare upper and lower, or are the parts specific to the piston type? And is there anywhere I can get schematics or detailed info on them?