JP Enterprises AR-10/.308 Polished Large Frame Buffer Spring

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CMMG .308 Lower Receiver Parts Kit

CMMG .308 Lower Receiver Parts Kit


Achieve A Smoother & Quieter Operation Of Buffer Tubes For Your AR-10 Type Rifles

The JP Enterprises AR-10/.308 Polished Large Frame Buffer Spring offers a smoother and quieter operation of buffer tubes in AR-10 platforms. It dramatically helps in improving the impulse feel of the rifle that results in faster sight recovery and improved reliability.

These springs run very smoothly and much more quietly than standard buffer springs and effectively reduce the raspy sound ideal for those using suppressors.

Made From Premium Piano Wire

The JP Enterprises AR-10/.308 Polished Large Frame Buffer Spring is made from premium piano wire and provides an increased cyclic rate with an expected service life of 10,000-20,000 rounds.

NOTE: This is the buffer spring JP Rifles recommends for use with large frame AR-pattern rifles using carbine buffers as well as 9mm carbines.


  • Recommended for 7-16″ barrels if using the JP 9mm Hydraulic Buffer
  • Recommended for 10-16″ barrels if using the JP 9mm AKTIVE Buffer.
  • For 14.5″-16″ 9mm barrels, it normally makes the softest running system with the JP 9mm Hydraulic Buffer but will also function fine in those barrel lengths.
  • Works great with any .308 AR-10 with a collapsible stock.


  • Centerless Ground and Polished Outside Edge
  • Smooth, Silent Operation
  • Perfect for use with Suppressors


  • Material: Stainless Steel
  • Finish: Custom centerless ground and polished

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.

JP Enterprises Warranty

Defective or Incorrect Merchandise

  • If you received incorrect or defective merchandise, please contact us to discuss the problem, and we will issue a UPS pickup for the merchandise.
  • We will reship any replacement items at our expense or refund you in full for incorrect or defective merchandise you have received.
  • If something is not what you expected, let us know and we’ll do everything possible to satisfy you.
  • Please include a copy of your sales receipt. Do not send returns back COD.

Contact Details:

  • Telephone: 651-426-9196
  • Email:

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