• 6-position Mil-Spec diameter buffer tube
  • Extended carrier support lip for smoother cycling
  • Lightening cuts for weight reduction
  • Unique fluted tube design for debris clearing
  • Engraved position number
  • Enlarged drain holes


  • Material: 7075 Aluminum
  • Finish: Hard Anodized
  • Weight: 4.3 oz.


  • AR-15 and AR-10


  • 1x PWS Mod 2 Enhanced Buffer Tube
  • 1x PWS Ratchet Lock Castle Nut
  • 1x PWS QD End Plate


Most firearm manufacturers want to think they’re on the cutting edge, then there are those who have really committed to evolving ahead of the pack. Primary Weapons Systems is dedicated to the processes that produce advanced evolution. This is apparent in everything they produce, from the obvious leaps made in the MK1 upper to the more understated Primary Weapons Systems MOD 2 Enhanced Mil-Spec Buffer Tube Kit.

Why PWS Buffer Tube Kit?

Yes, the MK1 gets a lot of glories, but when you only need the buffer tube kit you want the best buffer tube kit, right? That’s where the PWS Buffer Tube Kit comes in. From the extended anti-tilt lip to the solid locking ratcheting nut assembly that holds tight when you apply it, but doesn’t enslave you for life, this buffer tube assembly is something more than the average Mil-Spec buffer tube.

What Makes The PWS Enhanced Buffer Tube Better Than Others

The PWS Mod 2 Enhanced Buffer Tube Kit begins with a quality buffer tube of impact extruded 7075 Aluminum, then it is precision machined with lightening cuts that shave about an ounce off of the already fairly light Mil-Spec dimension. The fluted design allows the tube to easily clear debris that might bind a smooth sided tube and specially sized drain holes take into account the very real possibility that rain or deep water may be part of the operator’s day in the field.

A Type III Class 2 Hard Coat Anodized is applied to the finished tube for long lasting protection from damage both through handling and the effects of real operating environments. Clear marking of six stock positions and a QD sling swivel mount built into the end plate aid ease of operation in small but important ways that you’ll appreciate more the longer you use them.

You wanted a better Buffer Tube, the PWS Buffer Tube Kit is the one you want. Real usable features, real evolution. Because It’s Time.

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