Winchester Model 70 and FN Police SPR (LA) Stealth Detachable Mag Bottom Metal

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We cannot guarantee the part will drop in. We make products to tighter tolerances than factory. If bottom metal does not drop in or has tolerance issues, take the gun to a qualified gunsmith or utilize our inletting service.

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Items that are in stock will ship within 7 days. If not in stock, this item is custom made to order.



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This detachable mag box bottom metal fits Winchester Model 70 actions and some early FN Police SPR actions.

The Stealth Style Detachable Magazine Bottom Metal from PTG is the perfect upgrade to your tactical rifle. By adapting your bolt action rifle to accept Accuracy International AICS magazines, you can quickly change the variety of ammunition in your gun for different target types. These trigger guards are CNC machined from aircraft-grade aluminum and feature a durable black anodized finish. This fits Winchester LA or FN Police Special LA. This is designed as a drop-in for most BDL- style trigger guard inlets. However, due to variations in stock and receiver manufacturing, some gun smithing may be required. This Detach Mag Bottom Metal accepts .300WM or .338 3.715 Mag Boxes. Note nose profile in second picture.

Available with a .300WM / .338 3.715" magazine or without a magazine. See options above.

All Winchester bottom metal is ONLY compatible with post-64 Winchester manufacture date 

Make sure of the proper application as all sales on PTG Bottom Metal are final, absolutely no returns. If you need inletting, we do offer that service for an additional charge. Please click here for more PTG inletting service information.

This Bottom-Metal fits the following Magazines: Please Use below information for reference for any magazine request.

(AI-0479) 5RD .300 WM – Accuracy International

(AI-6801) 5RD .300 WM – Accuracy International

(AI-4368) 10RD .300 WM – Accuracy International

(0001) .300WM 5RD (3.715) –OAL – Accurate Mag

(0003) .338 Lapua Mag 5RD (3.715) –OAL– Accurate Mag

(0039) (30-06) 5RD (3.715) –OAL– Accurate Mag

Please Call: 541-826-5808 to Order Magazines