St-T3 Extra-Heavy Buffer
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specifications

Manufacturer:

Spikes Tactical

Type:

Buffer

Platform:

AR-15

    St-T3 Extra-Heavy Buffer

    Caliber Manufacturer Color Weight Merchant Price Merchant URL
    None Spikes Tactical None None None $124.16 Brownells Add

    Prices last checked September 2026. Prices and availability change often, so confirm on the retailer's site.

    Machined aluminum recoil buffer comes in three weights, so you can select the buffer that gives the best combination of recoil control and reliability in your carbine with an M4-type adjustable stock. All have a mil-spec polyurethane bumper, durable hard-anodized finish, and the Spike's logo. ST-T1 is a standard-weight (3 oz.) buffer filled with low-density tungsten powder (LDTP) that eliminates the noise and shock caused by the hard reciprocating weights found in the original-style factory buffer. Aids in smoother cycling and helps minimize bolt bounce. ST-T2 is filled with high-density tungsten powder (HDTP) for extra weight (4.1 oz.) behind the carrier to reduce cycle rate. Help you Mfg: Spikes Tactical SPECS: Aluminum, hardcoat anodized, black. Polyurethane bumper. 3A 1/4" (8.2cm) long. ST-T1 - 3 oz. (85g) wt.; ST-T2 - 4.1 oz. (117g) wt.; ST-T3 - 5.4 oz. (153g) wt. Fits AR-15 carbines with M4-type collapsible stock only.

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