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Nemo
Overview
The Nemo 300 Blackout Carbine Buffer Spring is designed specifically for AR-15 platforms, featuring a carbine length that provides optimal performance and reliability in your build. This spring is crucial for ensuring proper cycling of the action, which is especially important when using the 300 Blackout cartridge. Builders often incorporate this buffer spring in setups aimed at enhanced stability and smooth operation in various shooting scenarios.
Nemo Nemo 300 Blackout Carbine Buffer Spring ranked #29 of the 58 buffer springs builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since April 2026. All time, it ranks #47 of the 96 buffer springs builders have added.
Today the one retailer we track is out of stock. Listed prices start at $16.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
We ranked every buffer spring by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Buffer Spring Guide →Check it against the live catalog:
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