Browning BLR Takedown- 450 Marlin (One-Piece) - Matte Finish Mfg Number:  12325 UPC Number:  023614039143 Browning Scope Bases are machined from solid steel Weaver-type, one-piece scout-style bases for a long eye-relief scope, and are not compatible with Browning rings. SALES@ABLEAMMO.COM | 1-800-720-3275 | Tue 21 May 2013 02:59:41 PM MDT