UTG AR15 A2 Rifle Buffer Tube – Receiver Extension

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UTG A2/Rifle System · Single Part
Receiver Extension for the fixed A2/Rifle setup The UTG Rifle Buffer Tube is the single rifle-length receiver extension from the A2 system context. It belongs to a fixed rifle/A2 stock setup and is not a carbine tube nor an A5 replacement.
Important for selection: Buffer, spring, spacer, stock, and stock screw must match the same rifle system.

Fits well – or rather not?

Fits well if … you have a clearly identified A2/rifle fixed stock setup and want to replace only the receiver extension.


Fits rather not if … you plan an adjustable carbine stock, an A5 system, or a new build with several missing components.


What the part practically does

System base for the fixed stock The tube carries the fixed stock and forms the interior space for the matching rifle buffer and the matching rifle spring.


Rifle instead of carbine The system length is decisive for purchase. A carbine tube is not an equivalent replacement, even if both parts are colloquially called “buffer tube.”


Targeted replacement If stock, buffer, spring, and spacer are already correctly present, the receiver extension can be replaced individually.


Complete kit for new builds If several system parts are missing, a matched A2 kit reduces the risk of mixing rifle, carbine, and A5 components.


Limits, disadvantages, and avoiding bad purchases
“AR15” alone is not enough as proof of compatibility. The existing A2/rifle system setup is decisive. Receiver extensions that look similar can have different system lengths
belong.
For the individual spare part, no reliable detailed values for thread, barrel dimensions, or tightening torque are specified in the available shop/manufacturer documents. These values are therefore not transferred from third-party parts.

Technical data with practical interpretation

Manufacturer UTG / Leapers – in the official RB-T469B A2 Stock Assembly, a Rifle-Length Extension Tube is listed as a system component.

Product type Rifle-Length Receiver Extension / Buffer Tube – single part, not a complete kit.

System context AR15 with fixed A2-/Rifle stock. Not suitable for adjustable Carbine stocks or A5 systems.

Material Aluminium according to available product data; specific alloy for this single part is not added unless clearly documented.

Not included Rifle Buffer, Rifle Spring, Stock Spacer, stock and stock screw are separate components.

Item reference Shopify-SKU RB-T469B-02; assigned to the official UTG RB-T469B A2 Stock Assembly.

Scope of delivery
Included: 1 × UTG Rifle-Length Receiver Extension.
Buffer, spring, spacer, stock, stock screw, and tools are not part of the confirmed scope of delivery.

Safe use
Work on the stock and buffer system only on a fully unloaded system. System length, counterpart, and condition of existing parts must be clearly checked. Damaged threads, unusual resistance, or unclear mixed configurations are reasons for expert inspection instead of assembly with additional force.

FAQ
Are buffer and spring included? No. Only the Rifle-Length Receiver Extension is offered.
Does the tube fit an adjustable Carbine stock? No. It belongs to the fixed A2-/Rifle system context.
Are spacer and stock screw included? No. These parts are required separately if missing in the existing setup.
When is a complete A2 kit more sensible? When several system parts are missing or the existing setup is not clearly identified as a Rifle-/A2 system.

Black Raptor · Avoid bad purchases
Assign rifle system cleanly – then replace specifically. The Receiver Extension is useful as a single part if the rest of the A2 setup is already fixed. For new builds or mixed components, a coordinated system is the better choice.