Precision Engineering: Every component of this bolt carrier group is meticulously crafted to meet the highest standards of precision

handling equipment

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improves stability

Spyderco Tenacious Brown G-10 CPM M4 AREX Precision Engineering: Every component ofSpyderco Tenacious Brown G 10 CPM M4 This remarkable expression of the Tenacious elevates this best selling design to all new heights with a blade crafted from American made CPM M4 tool steel. Produced by the particle metallurgy process, CPM M4's sophisticated alloy composition, high vanadium content, and extremely fine grain structure give it exceptional wear resistance and toughness properties that translate to outstanding edge retention and impact