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Buffer Parts
AR-15 and AR-10 Buffer Parts for Recoil Assemblies
Buffer parts keep the recoil system of your AR build functioning as intended. This category covers the core components that mount and retain your buffer tube assembly, including carbine buffers, carbine buffer tubes, steel castle nuts, and end plates. White Label Armory offers these American-made, mil-spec components for AR-15 and AR-10 platform builders working on new assemblies or replacing worn hardware.
When selecting parts, confirm compatibility with your platform and pick the end plate configuration that fits your needs. Mil-spec and ambidextrous dual loop end plates ship in five-packs, and steel castle nuts in five-packs help secure the receiver extension. A matched AR15 carbine buffer and carbine buffer tube round out the recoil assembly.
To complete a lower, pair these with pre-assembled buffer kits. These components suit individual builders and firearms manufacturers sourcing parts through white-label manufacturing partnerships.
What this category includes
- Carbine buffer tubes, buffers, castle nuts, and end plates
- Mil-Spec dimensions for standard AR-15 and AR-10 receivers
- 7075-T6 aluminum tube with hard coat anodized, thin-film lubed finish
- 6-position buffer tube for adjustable length-of-pull
- Steel castle nuts and end plates with phosphate coating
- Notched castle nut for staking
- Standard Mil-Spec and ambidextrous dual-loop sling end plate options
- Five-pack quantities available on castle nuts and end plates
Frequently Asked Questions
This category covers individual AR buffer components including a steel castle nut (five pack), an AR15 carbine buffer, an AR15 carbine buffer tube, and end plates in both mil-spec and ambidextrous dual-loop styles (sold in five packs). These are individual parts for new builds or repairs.
This category focuses on individual buffer components. If you'd prefer a bundled assembly, check our Buffer Kits category, which groups related buffer components together for your build or repair.
Yes. The steel castle nut is listed as an AR10/AR15 part and ships as a five pack. For fitment on other items in this category, confirm the part matches your build's platform and specification before installing.
White Label Armory manufactures American-made, mil-spec AR components. The end plate is offered in a mil-spec version, and the castle nut is steel. Confirm each product's listed details match your build's requirements before ordering.
Orders ship within 2-3 business days. Free shipping is available on qualifying orders. Once your order ships, you'll receive confirmation so you can plan your build or repair timeline accordingly.
Build on.
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