For an AR pistol buffer tube, prioritize a part that explicitly matches the tube’s diameter and intended function. Of the supplied listings, the TACFUN butt-plate and the 30 mm circular-tube fastener are the closest matches by their descriptions, but the available details do not establish full compatibility with a specific AR pistol setup. The other listings are foam insulation, an Agri-Fab replacement grip, and a vaguely described stock-tube adapter. Check dimensions and intended use before ordering.
| Product | Best suited for | Key limitation |
|---|---|---|
| TACFUN Cobra Butt-Plate | Buyers seeking an end plate for a 1.25-inch round tube | Confirm fit and intended application |
| 30 mm ARP Tube Fastener | Buyers checking a circular-tube fastener option | Limited specifications provided |
| Midwest Stock Tube Adaptor Picatinny | Buyers researching a Picatinny-style stock-tube adapter | Compatibility details are not supplied |
| Kexuan Foam Pipe Insulation | Buyers looking for a foam cover by listed dimensions | Not described as a firearm component |
| Agri-Fab 46446 Grip | Owners of listed Agri-Fab equipment models | Not an AR buffer-tube part |
TACFUN Cobra Butt-Plate
Best for: Buyers who need a butt-plate described for a 1.25-inch-diameter round tube. The listing says it is made from zinc alloy and has an electrophoresis paint finish. It describes the Cobra-style plate as lightweight and ergonomic.
This is one of the more relevant listings because it specifies a round-tube diameter, a detail that matters when comparing tube accessories. It may suit someone seeking an end plate or finishing component, but the provided description does not confirm compatibility with every AR pistol buffer tube or setup.
Check before buying: Verify the tube’s actual outer diameter and how the plate attaches. The listing does not provide enough information to establish fit for a particular firearm.
30 mm Circular-Tube Fastener
Best for: Buyers comparing fasteners for a circular tube around 30 mm (1.17 inches). The product name identifies an aluminum fastener and describes it as a 360-degree ARP buffer circular-tube fastener.
Its stated diameter makes it potentially relevant for shoppers whose tube measurements are close to that size. Choose it only if its actual purpose and attachment method match your requirement; the supplied listing information does not state the complete specifications or confirm fit with a particular AR pistol buffer tube.
Check before buying: Compare the measurement carefully. A 30 mm tube is not the same as a 1.25-inch tube.
Midwest Stock Tube Adaptor Picatinny
Best for: Buyers researching an adapter identified by the listing name as a stock-tube Picatinny adapter. The product information supplied here offers no meaningful feature details beyond that name.
This listing is included as a possible accessory category to investigate, not as a confirmed match for an AR pistol buffer tube. The brief description does not explain the adapter’s dimensions, mounting method, or compatible components.
Check before buying: Do not assume that the word “Picatinny” confirms fit. Find the manufacturer’s specifications and verify the intended tube and attachment interface first.
Kexuan Foam Pipe Insulation
Best for: Buyers seeking foam pipe insulation with the listed measurements, not shoppers looking for a verified firearm component. The product name states a 1-inch inner diameter, 1.6-inch outer diameter, and a 6.75-inch length option.
The size information may help compare it with a tube for a non-firearm covering application. However, the listing calls it foam insulation and does not describe it as an AR buffer-tube accessory. Its dimensions alone do not establish suitability for firearm use.
Check before buying: Avoid treating insulation as a purpose-built buffer-tube cover without manufacturer information confirming that use.
Agri-Fab 46446 Replacement Grip
Best for: Owners of the Agri-Fab equipment models named in the listing who need the specified replacement grip. The product is described as a one-inch grip and an authentic Agri-Fab part. Listed compatible models include 45-0563, 45-0252, 45-0502, 45-05021, GST46, GST46A, GST46B, LST40, LST42, and LST42A.
This is not an AR pistol buffer-tube product. It is included because it appears among the supplied listings, but its stated compatibility is limited to the named Agri-Fab models.
Check before buying: Consult the equipment manual and parts diagram, as the listing recommends. Do not select it for an AR tube based only on its one-inch measurement.
Buying Guide: How To Choose an AR Pistol Buffer Tube Part
What measurements should you verify?
Check the tube’s diameter and the accessory’s required diameter, then compare the measurements in the same units. A listing that gives a number without clarifying whether it refers to inner or outer diameter may not provide enough information. Confirm the attachment method and the intended application as well.
Does a stock-tube accessory automatically fit a pistol tube?
No. Similar product names do not prove compatibility. Look for the exact tube type, dimensions, and mounting details from the manufacturer. If those specifications are missing, treat fit as unconfirmed rather than assuming the component will work.
How should you compare these listings?
Start with products that clearly name a relevant component and provide usable measurements. The TACFUN listing specifies a 1.25-inch round tube; the fastener listing gives a 30 mm diameter. The adapter lacks detailed specifications, while the foam and Agri-Fab products are not described as AR buffer-tube components.
Frequently Asked Questions
What diameter does the TACFUN butt-plate list?
The listing says it fits 1.25-inch-diameter round tubes. Confirm that measurement and attachment requirements against your tube before buying.
Is a 30 mm fastener the same size as a 1.25-inch part?
No. Thirty millimeters is approximately 1.18 inches, so it is smaller than 1.25 inches. Verify the product’s specified measurement and fit requirements.
Is the Kexuan foam insulation an AR buffer-tube accessory?
The supplied product details describe it as foam pipe insulation, not as a firearm accessory. Its stated dimensions do not establish firearm suitability.
Does the Agri-Fab grip fit an AR pistol tube?
The listing identifies it as a replacement part for specified Agri-Fab models. It does not claim AR buffer-tube compatibility.
What should I do when compatibility information is missing?
Check the manufacturer’s specifications or contact the seller with the tube dimensions and intended application. Do not rely on a product title alone to confirm fit.