PWS Enhanced Buffer Tube Kits – A5 H2 & Carbine-Length Ratchet Lock

Premium Buffer Tube Upgrades – Choose Your Configuration

Whether you're building a precision-focused AR-15 or upgrading a workhorse rifle, these PWS Buffer Tube Kits offer the performance, durability, and ease of installation that serious shooters demand. Built from impact-extruded 7075 aluminum with meticulous machining and anodizing, both variants deliver superior strength, compatibility, and cycle smoothness.

Kit 1: A5 Enhanced Buffer Tube w/ A5H2 Buffer & Spring

A precision-tuned A5 buffer system designed for increased reliability and optimal cycling.

• Tube Type: A5-Length Enhanced Buffer Tube

• Material: 7075-T6 Aluminum, Impact-Extruded

• Finish: MIL-A-8625 F, Type III, Class 2 Hardcoat Anodized

• Extended Carrier Support Lip for reduced carrier tilt and smoother cycling

• Weight Savings: ~1 oz lighter than standard tubes due to lightening cuts

• Drainage: Enlarged drain holes for debris and moisture clearance

• Buffer: A5H2 (5.33 oz)

• Spring: Sprinco A5 Green Buffer Spring

  • ASTM Certified Chrome Silicon Wirestock

  • Dual-stage shot-peened

  • Consistent lock time and cycling characteristics

• Compatibility: ONLY works with A5 buffer system components

What's Included:

• PWS A5 Enhanced Buffer Tube

• PWS A5H2 Enhanced Body Buffer

• Sprinco A5 Green Buffer Spring

Note: No performance notes yet. Testing and platform-specific updates coming soon.

Kit 2: Carbine-Length Enhanced Buffer Tube Kit w/ Ratchet Lock System

One of our favorite carbine-length buffer tube kits—exceptional build quality, easy install, and rock-solid lockup.

• Tube Type: Carbine-Length Enhanced Buffer Tube

• Material: 7075-T6 Aluminum, Impact-Extruded

• Finish: MIL-A-8625 F, Type III, Class 2 Hardcoat Anodized

• Weight: 4.3 oz

• Stock Positions: 6, with engraved indexing

• Extended Carrier Support Lip for smoother cycling

• Fluted Design: For self-cleaning under harsh field conditions

• Ratcheting Castle Nut & Endplate:

  • No staking required

  • Easy, secure installation

• Drainage: Enlarged ports for fast water/debris removal

Why We Recommend It:

• Outstanding Fit & Finish – tight tolerance machining and hard anodizing

• Fast Install – ratcheting system eliminates guesswork

• Smooth Operation – reduced wear and reliable stock fitment

What's Included:

• PWS Enhanced Carbine-Length Buffer Tube

• Ratchet Lock Castle Nut

• Ratchet Lock Endplate

Ally Munitions Notes:
Don’t forget — we offer buffer springs and weights specifically tailored for the ARC cartridge family. You’ll find them in our dedicated parts section. Also check out our other buffer tube kits from CMC, now in stock.

Use Guidelines

         Match buffer and spring to your system (A5 vs. Carbine)

• Make sure your lower receiver is compatible with the selected buffer length and stock

Legal Notice

• You must be 18 years or older to purchase firearm parts

• Always confirm compatibility with your firearm before installation

• All parts sales are final

• Know and comply with your local and state laws before ordering