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The Armaspec SMB Buffer Kit H3 Gen 3 is a complete buffer tube assembly for AR-15 pattern firearms, built around Sound Mitigation Buffer technology that delivers superior performance compared with standard mil-spec buffer springs and weights. The kit includes the SMB buffer, buffer tube, endplate, and castle nut, giving you every component needed to finish an AR-15 lower build in one package.
As a direct upgrade over OEM mil-spec components, the H3 configuration is intended for shooters who want reduced felt recoil and the smoother cycling that the sound mitigation design provides. Because it fits AR-15 pattern firearms, it drops into standard builds without modification.
Key Features
Brand
Armaspec
Model
SMB Buffer Kit
Manufacturer SKU
ARM268H3
UPC
810048492756
Condition
New
Firearm Fit
AR-15
Features
Sound Mitigation Buffer-H3
Type
Buffer Tube Complete Assembly
Category
Chassis & Stocks
Compatibility
Fits AR-15 pattern firearms.
What's included
SMB Buffer
Buffer Tube
Endplate
Castle Nut
Frequently asked questions
What is included in the Armaspec SMB Buffer Kit H3 Gen 3?
The kit is a complete assembly that includes the SMB buffer, buffer tube, endplate, and castle nut.
Which firearms does this buffer kit fit?
It is designed to fit AR-15 pattern firearms.
What buffer weight is this kit?
This is the H3 configuration of the Armaspec SMB Buffer Kit.
What is the manufacturer SKU for this buffer kit?
The manufacturer SKU is ARM268H3, and the UPC is 810048492756.
