

Click to see full view
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.
Prices checked
Builders have added the Nemo Nemo 300 Blackout Carbine Buffer Spring to their builds on GunPartPicker. Since April 2026, it ranks #55 of the 116 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 37 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:
The part most often added in each category by the builds that include this one

Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-Black-K1-GOLD

Strike Industries AR-15 Ultra Light Pivot / Takedown Pins - FDE

Timber Creek Outdoors Enforcer AR-15 Pistol Grip - Red

Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11

Geissele Automatics AR-15 Premium Buffer Tube Ddc

Phase 5 Tactical Extended Ambidextrous Bolt Release V3 - Red Cerakote
No reviews yet. Be the first to review this product!