STD KIMBER 8400 MAT 2PC BASESTD Two-Piece Base Kimber 8400 (serial # 10,000+), Matte finish Machined steel construction - Front accepts dovetail ring - Rear ring is secured by windage adjustment screws - Offer maximum accessibility to the breech area - Fit right & lefstment screws - Offer maximum accessibility to the breech area - Fit right & left-hand actionst-hand actions