Geissele Automatics Super Semi-Automatic Enhanced SSA-E Two Stage AR-20 Trigger 154: a replacement fire-control upgrade for the platform named in the title. Check that your rifle matches before you order.

Columbia Gun Rack serves buyers in Columbia, the Midlands and all 46 counties. Parts ship to your door where legal; check your state and local law before you order. Price and stock are confirmed live when you order, before you pay.

Every rifle platform has its own pin spacing, receiver width and parts. The title states which one this item is built for; if yours is different, choose the version made for it.

Columbia Gun Rack added this item to the shop as a new arrival. Details come from the maker's published listing, in our own words. If you need a measurement, material or compatibility detail that is not shown, send us the question before ordering.

Questions about fit? Match the title to your rifle and trigger type, and ask before you order if anything is unclear. Listed as a new arrival and in stock.