Spike's Tactical M4 Complete Stock Kit ST-T2 Buffer Tube AR-15

Spike's Tactical M4 Complete Stock Kit ST-T2 Buffer Tube AR-15

Spike's Tactical
MPN:
SAK0701-K
UPC:
855713006906
$114.69
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Description

The Spike's Tactical M4 Complete Stock Kit ST-T2 delivers everything you need to build out a rock-solid, mil-spec AR-15 stock assembly in one convenient package — no hunting for individual components required.

  • Includes mil-spec 6-position buffer tube for maximum compatibility and fit
  • M4 collapsible buttstock adjusts easily for different shooting positions and body types
  • ST-T2 heavy carbine buffer reduces felt recoil and improves bolt carrier reliability
  • Full-length carbine buffer spring ensures consistent cycling and reliable function
  • Castle nut and receiver end plate included for a complete, ready-to-install kit
  • Durable black finish resists corrosion and wear through hard use

Who This Is For

This kit is ideal for AR-15 builders, upgraders, and home gunsmiths who want a complete, high-quality stock assembly without piecing together components from multiple sources. Whether you're finishing a new lower receiver build or replacing a worn-out stock setup, the Spike's Tactical ST-T2 kit gives you trusted components from a respected manufacturer in a single, cost-effective solution.

Spike's Tactical M4 Complete Stock Kit ST-T2 with buffer tube, buttstock, and hardware

Specifications

BrandSpike's Tactical
ModelM4 Complete Stock Kit ST-T2
Buffer TypeST-T2 Heavy Carbine Buffer
Buffer Tube6-Position Mil-Spec
ButtstockM4 Collapsible
IncludesBuffer Tube, Buttstock, ST-T2 Buffer, Buffer Spring, Castle Nut, End Plate
CompatibilityAR-15 / M4 Platform
FinishBlack
Tube StandardMil-Spec

Frequently Asked Questions

What makes the ST-T2 buffer different from a standard carbine buffer?

The ST-T2 is a heavy carbine buffer that weighs more than a standard carbine buffer, typically around 3.8 oz versus the standard 3.0 oz. The added weight slows the bolt carrier group slightly on its rearward stroke, which reduces felt recoil, minimizes bolt bounce, and can improve reliability — especially in rifles running suppressed or with overgassed setups.

Will this stock kit fit any AR-15 lower receiver?

Yes — this kit is built around a mil-spec diameter buffer tube, which is compatible with the vast majority of AR-15 and M4-pattern lower receivers. It will also accept any mil-spec compatible M4 collapsible stock. Note that commercial-spec lower receivers use a slightly different (larger) tube diameter, so confirm your lower's spec before ordering if you are unsure.

Do I need any special tools to install this stock kit?

Basic AR-15 armorer's tools are recommended for proper installation. You'll need a castle nut wrench (also called an armorer's wrench) to torque and stake the castle nut to the receiver extension, as well as a receiver vise block to secure the lower during assembly. The process is straightforward for anyone familiar with AR-15 building, and many instructional resources are available online to guide first-time builders through the steps.