Strike Industries AR-10 Flat Wire Buffer Spring


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Strike Industries AR-10 Flat Wire Buffer Spring

Enhance the performance and longevity of your .308 AR system with the Strike Industries Flat Wire Buffer Spring. This premium upgrade smooths out the operating cycle, increases reliability, and vastly outlasts stock springs.

The flat wire design applies increased bolt load while decreasing compression force, promoting reliable cycling even under demanding conditions. Constructed from cryogenically treated chrome-silicon steel, this spring delivers exceptional strength and resilience to rapid-fire rates.

By reducing harmonics and vibration, the Flat Wire Buffer Spring enables faster follow-up shots with improved accuracy. Say goodbye to the annoying noises associated with standard springs.

Compatible with all AR-10/SR-25 receiver extensions.


  • Brand: Strike Industries
  • Model: AR-10 Flat Wire Buffer Spring
  • MPN: SI-AR10-FWS
  • Material: Cryogenically Treated Chrome-Silicon Steel
  • Outside Diameter: 0.94″
  • Inside Diameter: 0.75″
  • Length: 19.5″
  • Revolutions: 42
  • Wire Gauge: 0.045″ x 0.0935″
  • Weight: 3 oz gross, 2 oz net
  • Compatible With: AR-10/SR-25/LR-308 Platforms

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Strike Industries Warranty

How to return a defective item:

  1. BEFORE returning any products, please visit the CONTACT US section to complete and submit the “Return for Refund/Exchange” form to receive an RMA (Return Merchandise Authorization) containing your name, shipping address, phone number, email, and reason for the return (including, if applicable, information about the firearm, ammo, and usage environment for defective returns). Please include a copy of the receipt if possible as well.
  2. Once the RMA form has been processed, Strike Industries will provide a return shipping label for the refund or exchange of the product, including the shipping charges for non-expedited traceable shipping methods.
  3. Wrap the item with sufficient padding and place it in an appropriate box or bubble mailer for shipping.
  4. Ship out the package along with placing a printout of the RMA form we provided inside the box.
  5. All processed and approved refunds will be applied to the credit card used during the original purchase. You should allow one to two billing cycles for the refund to appear on your statement.
  6. Arrangements for a defective exchange or return must be made within one year of the warranty period, starting from the date the order is received. RMA numbers are valid for 14 days from the issue date. All packages received without an RMA number will be refunded, however, an automatic 20% handling fee ($2 minimum) will apply.
  7. If the product was purchased from a 3rd party, Strike Industries provides no refund but only an exchange option.

Contact Details:

  • Telephone: 714-557-9831

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.