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AR-15 Carbine Buffer Kit

Best price

$67.99at AR15Discounts

checked Nov 10, 2026

Buy at AR15Discounts

Compare 4 stores

Where to buy

StorePriceAvailabilityBuyAdd to build
AR15Discounts Best price $67.99checked Nov 10, 2026 Check store Buy at AR15Discounts
Dirty Bird $67.99checked Nov 10, 2026 Check store Buy at Dirty Bird
Brownells $56.99checked Nov 10, 2026 Out of stock Buy at Brownells
MidwayUSA $67.99checked Nov 10, 2026 Out of stock Buy at MidwayUSA

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$67.99$67.99$67.99
Brownells$56.99$56.99$56.99
Dirty Bird$67.99$67.99$67.99
MidwayUSA$67.99$67.99$67.99

Since Sep 27, 2026.

About this part

The AR-15 Carbine Buffer Kit is an AR-15 buffer part from Aero Precision. It's sold by 4 stores, from $56.99 to $67.99.

Fits and works with

Buffer system
Carbine · Buffers and springs

Specifications

Manufacturer
Aero Precision
Platform
AR-15

From the manufacturer

A Complete Buffer Kit for Your AR-15 Carbine

With the popularity of short, pistol-length, AR-style firearms on the market, more of today's AR owners are seeing a phenomenon that occurs on semi-automatic firearms with short gas systems: overgassing. The result of overgassing is increased wear on internal components, as well as increased felt recoil. To address these issues, Aero Precision launched its AR-15 Carbine Buffer Kit.

Several options are available in the company's Carbine Buffer Kit lineup. Each kit ships with a mil-spec buffer tube machined from 7075-T6 aluminum and features slots for a six-position buttstock. The kits also include a buffer spring, end plate and castle-lock nut. However, where the kits differ is in the weight of the included buffer.

The Aero Precision AR-15 Carbine Buffer Kit can be had with a standard buffer spring, a H (Heavy) buffer, an H2 buffer or a heavy H3 buffer, so AR owners can fine-tune their operating system to reduce overgassing. Buffer weights are 3 ounces, 4 ounces, 4.6 ounces or 5.6 ounces, respectively.

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$67.99 at AR15Discounts
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