Rock River Arms builds this BT3 magazine (part no. BT30116C10) for its LAR-8 pattern rifles, chambered for both .308 Winchester and .243 Winchester since the two cartridges share the same case head and magazine geometry. It holds a 10-round capacity in a steel body, giving LAR-8 owners a genuine factory-pattern spare for hunting or range use. For Rock River Arms owners of an LAR-8 pattern rifle in .308 or .243, this rifle magazine is a direct-fit spare.

Key Specifications

• Chambered for .308 Winchester and .243 Winchester.
• Holds 10 rounds.
• Built from steel.
• Fits Rock River Arms LAR-8 pattern rifles.
• Manufactured by Rock River Arms.

Frequently Asked Questions

What rifles does this magazine fit? Rock River Arms LAR-8 pattern rifles chambered in .308 Win or .243 Win.

Does it work in both calibers? Yes, .308 Winchester and .243 Winchester share the same case head and magazine geometry.

Buy the Rock River Arms BT3 Magazine

A steel spare built for the LAR-8 platform, this Rock River Arms BT3 magazine covers both .308 and .243 Winchester chamberings. Order it from our Lubbock, Texas gun shop for fast, insured shipping.