Phase 5 Tactical Ar-15 Pistol Pigtail Gas Tube

Phase 5 Weapon Systems Phase 5 Tactical Ar-15 Pistol Pigtail Gas Tube - Gas Tube for AR-15 - view 1
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Phase 5 Weapon Systems

Overview

The Phase 5 Tactical AR-15 Pistol Pigtail Gas Tube is designed specifically for pistol-length gas systems, ensuring reliable cycling in compact builds. This configuration is essential for AR-15 pistols chambered in 5.56 NATO, as it helps maintain optimal gas flow and performance in shorter barrels. You'll often find this gas tube in builds focused on compactness and maneuverability, catering to shooters who prioritize a lightweight setup.

Specifications

MPNPIGTAIL
Gas System LengthPistol

Available Merchants(4)

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Brownells
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$65
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BattleHawk Armory
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Ammunition Depot
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Palmetto State Armory
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$74

Frequently Built With

Based on build data

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

100%
AR-15100%

Caliber

50%
5.56 NATO50%
300 Blackout37.5%
.223 Wylde12.5%

Gas System

66.7%
Pistol66.7%
Carbine16.7%
Mid-Length16.7%
Frequently Built With Products
ProductCategoryTimes Built Together
SureFire Optimized Ar-15 Bolt Carrier Group - 5.56 Nato2
Ar-15 Carbon Fiber Barrels 223 Wylde - 223 Wylde 1-7 Twist 11.5'''' Carbon Fiber Barrel2
Slr Rifleworks Sentry Gas Block .875 Adjustable Titanium Set Screw2
Fortis SHIFT Vertical Grip - M-LOKForegrip2
Fortis Billet Dust Cover - Carbon Fiber - Black2
DANIEL DEFENSE M4A1 RIS II Rail Interface System II (01-004-08001-006)2
Build Platform Breakdown
PlatformPercentage
AR-15100%
Build Caliber Breakdown
CaliberPercentage
5.56 NATO50%
300 Blackout37.5%
.223 Wylde12.5%
Build Gas System Breakdown
Gas SystemPercentage
Pistol66.7%
Carbine16.7%
Mid-Length16.7%

Builds Featuring This Part

See all 9

Builds in the community that include the Phase 5 Tactical Ar-15 Pistol Pigtail Gas Tube

BuildPartsTotal
As my EDC rifle 6"
10$745.14
carbine 11.5"
10$3182.67
new 5.56 build
18$2431.00
aero precision 30"
31$2939.17
Radian weapons 8"
20$2280.59
Yankee hill machine 16"
18$1333.94
My build
11$931.43
Franklin armory 11.5" 5.56
36$16007.81
9" recce
11$2979.09

Customer reviews

4.5out of 5

2 global ratings

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Top reviews

B
ByersRemorse
Works, but temper expectations
Reviewed on May 1, 2026Verified with Build

It functions as a gas tube should for a pistol build, and the pigtail does help redirect gas a bit. However, it's pretty basic. Didn't notice a huge difference compared to other pistol tubes I've run on similar setups. Still a decent option if you need one.

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X
xNathanG
Good for tight builds
Reviewed on March 18, 2026Verified with Build

Got this for my 7.5 inch 5.56 pistol build. Cycling is way more consistent now than with a standard tube. Really happy with how it smoothed out the ejection with my KAK BCG. BCM brace and all, it's a solid little carbine.

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