Expo Arms Buffer Retainer Pin
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Expo Arms
Overview
The Expo Arms Buffer Retainer Pin is a crucial component of the buffer tube assembly, designed to securely hold the buffer retainer in place within your AR-15 lower receiver. Made from steel, this pin ensures durability and reliability during operation, maintaining the integrity of your buffer system. This part is commonly found in a variety of builds, particularly those focused on performance and longevity.
Specifications
Available Merchants(1)
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Price Alert
September 2026 on GunPartPicker
Expo Arms Buffer Retainer Pin ranked #33 of the 68 buffer tube kits builders added on GunPartPicker in September 2026. Builders on GunPartPicker first added it to a build in April 2026.
Today the one retailer we track has it in stock. Buying today, the lowest price is $0.99 at Primary Arms.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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