AR-15 Complete Pistol Buffer Tube Assembly

AR-15 Pistol Buffer Tube Complete Assembly (PBT-CA)

***If you are interested in a different color buffer tube Complete Assembly, add the products separately to your cart to receive the same Complete Assembly special price. Please add a PBT Tube (your choice of color) to your cart along with a Standard Carbine Buffer and a Pistol/Carbine Buffer Spring. Product links below:

Pistol Buffer Tube (PBT)

Standard Carbine Buffer

Pistol/Carbine Buffer Spring


Product Description:

AR-15 Pistol Buffer Tube Complete Assembly (PBT-CA)™ by Phase 5 Weapon Systems Inc partners our enhanced buffer spring, billet aluminum Pistol buffer tube, Mil-Spec end plate, Mil-Spec castle nut, Mil-spec carbine buffer and our ultra-durable NPVC-constructed buffer tube foam pad. The lower slot is machined to accept all Mil-Spec end plates and sling mounting accessories.

Overall diameter: 1.25”

Works great with the Sig Sauer® Pistol Stabilizing Brace! Nice snug fit to insure no unwanted brace movement during pistol operation. Also allowing any desired brace position with zero restrictions, all the way forward, or as far back on the tube as you would like.

Pat No.: US D717, 906 S

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In stock
Item Price: $69.95
Overall Length:
7.4 inches
Product Weight:
Assembled Weight:
Made in the U.S.A.
CNC-machined aluminum buffer tube

CNC-machined 7075 T651 Certified US made billet aluminum buffer tube

Tube is designed to fit Mil-Spec carbine buffer and spring.

Hard-anodized Mil-Spec type III black finish

Classic Military anodized finish adds durability and visual appeal that ensures reliability against component wear.

Machined lower slot

Slot offers maximum compatibility by accepting all Mil-Spec end plates and sling mounting accessories.