Buffer Spacer


  • Manufacturer: New Frontier Armory
  • Model: Blowback Buffer Spacer
  • Dealer Price will appear in cart when logged in 
  • -Dealer QTY Discounts at 25 and 100 units

In stock



  • Manufacturer: New Frontier Armory
  • Model: Blowback Buffer Spacer
  • Weight: .2oz

Blowback Buffer Spacer for use with 9mm/.40/ .357Sig / .45 / 10mm AR style firearms and standard carbine length buffers

  • US Made with engineering grade polymer
  • Use when running a carbine buffer with a blow back system instead of buying an expensive longer buffer
  • Helps lessen chance of breaking bolt catches by limiting the rearward travel of your blow back BCG
  • Helps speed up cycling by shortening overall (necessary) bolt travel when using the shorter rounds/shorter BCG
  • Saves weight adding only .2 oz to your build instead of a heavier / longer buffer


Installation Instructions:


2) Remove take down pin and swing upper away from lower

3) Remove your buffer and buffer spring from the lower

4) Slip buffer spacer onto buffer spring at the opposite end that the buffer resides **SEE PHOTO BELOW

5) Re-install buffer, buffer spring, and spacer into buffer tube

6) Close upper and lower receiver together and re-install take down pin

Buffer Spacer 04



The New Frontier Armory Blowback Buffer Spacer is proudly MADE IN THE USA by hard working American men and women.



Additional information

Weight.0125 lbs
Dimensions1 × 1 × 1 in


There are no reviews yet.

Be the first to review “Buffer Spacer”

Questions and answers of the customers

  1. 0 votes

    It depends on your build specs. 
    C9 lowers running 9mm should use a standard buffer and spacer or you can use a 7.5 ounce buffer and the XP recoil spring.
    C9 lowers running .40 should use a standard buffer.
    C45 lowers running .45/10mm should use an 8 oz buffer.

  2. 0 votes
    Q Is this made for use with an ar15 carbine buffer on an ar9 platform? answer now
    Asked by BENJAMIN PRUITT on February 26, 2019 8:37 pm

    Blowback Buffer Spacer for use with 9mm/.40/ .357Sig / .45 / 10mm AR style firearms and standard carbine length buffers.

Send me a notification for each new answer.

You may also like…

Service Disabled Veteran Owned Small Business Authorize.net