Zenitco Gas Tube - Short (171.5 mm) for AR-15
- $39
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Zenitco Gas Tube - Short
Genuine Zenitco | Short (PDW-class) gas tube for AR-15 | Stainless steel | Length 171.5 mm
In short: the Zenitco Short gas tube is a genuine Zenitco replacement gas tube for AR-15 carbines running a short (pdw-class) gas system. Precision-made from stainless steel at 171.5 mm for reliable gas port alignment and durability. Part of the genuine Zenitco AR-15 upgrade line.
Overview
The Short gas tube is the direct-impingement gas tube for AR-15 platforms in the short length: 171.5 mm, or 6.75 in. Gas tube length has to match the gas block position on the host platform - it is not a matter of preference.
Made from stainless steel, 16 g. It replaces the original tube on the same fittings.
Compatibility Note: for AR-15 platforms with a direct impingement gas system. The tube length must match the gas block position on your host platform.
Compatibility: AR-15 pattern carbines with a short (pdw-class) gas system. Overall length 171.5 mm. Pairs with a standard AR-15 gas block and front sight base gas port.
Key Advantages
- Genuine Zenitco stainless-steel gas tube
- Correct 171.5 mm length for short (pdw-class) gas systems
- Corrosion- and heat-resistant stainless construction
- Precise gas port alignment for reliable cycling
- Direct replacement - no machining of the tube required
Technical Specifications
| Brand | Zenitco |
| Type | Gas tube |
| Material | Stainless steel |
| Length | 171.5 mm |
| Gas system | Short (PDW-class) |
| Fits | AR-15 |
| Operating temperature | -50°C to +50°C |
| MPN | Zen-GT-PIS |
| Condition | New |
In the Box
- 1 x Zenitco Short gas tube (171.5 mm)
Frequently Asked Questions
Which gas system is this for?
This is the short (pdw-class) tube at 171.5 mm. Match the tube length to your host platform's gas-system length (the distance from the chamber to the gas port).
Is a gas tube roll pin included?
The tube is supplied on its own; reuse your existing gas tube roll pin or source a standard AR-15 roll pin.
How do I know which length I need?
By where the gas block sits on the host platform, not by preference. The four lengths are short at 171.5 mm, carbine at 248.7 mm, mid-length at 298.5 mm and full-length at 384.2 mm.
What is it made of?
Stainless steel, like the original.
Will it fit a piston system?
No. These tubes are for direct impingement systems.
Is this a genuine Zenitco part?
Yes - it is an original Zenitco gas tube with guaranteed delivery.
Related: browse more genuine gear on the Zenitco brand page.
Related products: Zenitco B-12 Upper Rail - CNC Aluminum Gas Tube Picatinny Rail (for B-10 / B-20), Zenitco Gas Tube - Carbine (248.7 mm) for AR-15, Zenitco Gas Tube - Full-Length (384.2 mm) for AR-15
Genuine Zenitco Short gas tube.
General
Mounting interface
AR-15 gas system
Product type
Gas tube
Brand
Zenitco
Manufacturer Part Number (MPN)
Zen-GT-PIS
Condition
New
Intended Use
AR-15 (Short (PDW-class) gas system)
Material
Stainless steel
Weight
16 g +2 g
Dimensions (L x W x H) mm
Length 171.5 mm
Operating Temperature
-50°C to +50°C
Mounting & Rails
Function
Short length gas tube
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