Reviews & Ratings for Spikes Tactical 9mm Buffer Spacer

Spikes Tactical 9mm Buffer Spacer

$14.95 $13.79 Save $1.16

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Most Helpful Positive Review 9mm buffer spacer

The spikes tactical buffer spacer fits and works perfectly, the action cycles faster and seems to take some of the slap out. Much cheaper than buying a new buffer and spikes spacer is made of metal and will last longtime unlike the cheaper versions made of plastic. I would definitely recommend this...
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Most Helpful Negative Review Out of spec.

The spacer is too long. Does not allow bolt to travel far enough to engage the bolt catch. Seems to be well made but just doesn't fit. Waste of money, save yourself a few dollars and use about 2.25 in quarters instead.

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Nice spacer but slightly longer than 0.75"

by maiti, Verified Owner from LA, United States Written on July 10, 2026

This is a well-made spacer and works great. Most likely it will work under most scenarios but for those who need tighter tolerance the length is not exactly 0.75" needed for 9 mm bolt. It is actually slightly taller than that (~1/8").

Was it helpful to you? Yes | No

spikes 9mm buffer spacer

by Elmiguel007, Verified Owner from WA, United States Written on June 24, 2026

High quality and would recommend to anyone with a pcc

Was it helpful to you? Yes | No

buffer spacer

by Oflaq, Verified Owner from GU, United States Written on February 8, 2026

Ordered this as well as another set of spacers, this was a little more than I needed for my BM-9. This item is well made will be using it on another build.

Was it helpful to you? Yes | No

AR9 buffer spacer

by Zumwold, Verified Owner from FL, United States Written on February 7, 2026

Quality manufacturing, corrosion resistant. Simple installation.

Pros:

Well constructed

Cons:

None

Best Used for:

Preventing BCG over travel.

Was it helpful to you? Yes | No

Does the job

by m4a1sof, Verified Owner from FL, United States Written on March 11, 2025

Extremely well made and the finish is very good, has the cool Spikes tactical logo on it. Is the correct length for using standard length buffers in 9mm PCC's.

Pros:

None

Cons:

None.

Was it helpful to you? Yes | No

Optics Planet is awesome

by Wiebs41, Verified Owner from AZ, United States Written on August 28, 2024

My go to sight for buying anything online. Amazing prices and great selection .

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Save your LRBHO!

by ThyToaster, from KS, United States Written on March 14, 2024

A simple but very effective product. I bought two of these for my AR9's. It stops the bolt travel just behind the bolt catch. If you have a last round bolt hold open (LRBHO), it'll stop the bolt just behind the catch so it doesn't have enough room to hit the catch and break it. I put a couple hundred rounds through the gun with the spacer installed and it didn't hinder performance at all.

Pros:

Firearm Health

Cons:

None

Best Used for:

Was it helpful to you? Yes | No

too thick for standard buffer

by popashot, from FL, United States Written on May 16, 2021

I'm using a standard AR buffer tube (inside length measured from back of buffer tube to retaining pin 7 1/16"), standard AR buffer and carbine spring and spacer will not allow the bolt to retract enough to engage bolt catch. Tried this spacer in two other ARs and same thing.
Thought I could use the spacer instead of a stack of quarters in my AR9 build but just too thick. Be nice if Spikes could make a lightweight aluminum adjustable spacer.

3 of 3 found the following review helpful.

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Reviews & Ratings for Spikes Tactical 9mm Buffer Spacer — 10 reviews — Page 1