1100139 Factory Kimber 8400 Scope Base Set Stainless Steel Short and Long Action 2 Piece - 1100139 These bases are elegantly contoured to match your Kimber rifle. Windage adjustable screws enable perfect centering of the scope which aids in reliability and accuracy. 8400 two piece bases will fit both 8400 short and long action models. Satin silver stainless steel.