Spike's Tactical 9mm Buffer Spacer

Manufactured by Spike's Tactical
Manufactured by Spike's Tactical
1 Review

In Stock

Standard orders will be shipped within the same business day. FFL orders will ship within 2 business days or less as long as we have the information for the transfer destination. Priority shipping methods like Overnight Delivery, Air Delivery, 2nd Day Delivery, or 3 Day delivery do not include Saturday or Sunday as delivery days.



The Spike’s Tactical 9mm Buffer Spacer was designed for three basic purposes. It limits the travel of your 9mm bolt, helps eliminate the chance of breaking bolt catches, and makes for a much smoother shooting gun. It's made from solid CNC machined 6061 billet aluminum with a black anodized finish for extra strength and durability.

To Install the ST-9BS spacer, you must first remove your buffer and spring from the buffer tube. Next install the smaller side of the ST-9BS on one end of your spring as you would with a buffer, then drop the complete unit into the buffer tube. The ST-9BS goes in first followed by the carbine buffer spring and then the buffer itself.
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BrandSpike's Tactical
TypeBuffer - 9Mm
Weight0.82 Oz

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

Ratings & Reviews

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Helps With Bolts That Won't Lock Open On The Last Round

by -

This spacer worked perfectly on my AR9 Pistol build. I bought an upper and kit from CBC Industries to go with my Spikes lower (amazing btw!). The upper clearly advised it would not lock the bolt back after the last round. I read some reviews about putting quarters in the buffer tube, but found this spacer instead. It worked like a charm so far and locks back on an empty mag after the last round.