Palmetto 10.5" kit with SBA4 buttplate, Geislee SSA-E trigger, 3.5X ACOG green horseshoe reticle. I like the firmness and extra inch length of the SBA4 over the SBA3. I did prefer the sling mount on the SBA3 though. It has some cone flash hider, that is primarily designed to direct noise forward. Still pretty barky. Super reliable a pretty accurate with match ammo. I still like it, and really can't think of any improvements. Very efficient "pistol".