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Questions & Answers
Does this buffer tube come with castle nut ?

No, this is just the tube itself.

by VLTOR, Verified Owner, November 27, 2024
Can this buffer to be used with an AR 10 and if so, what buffer spring and buffer should I use?

The A5 Tube can be used on an AR-10 in conjunction with a standard AR-15 Buffer and Carbine Spring (Sprinco Red)

by VLTOR, Verified Owner, November 27, 2024
Customer Reviews
Helpful Positive Review A5 Buffer System is the best on the market. by Rogers Williams, Verified Owner, June 11, 2022
I replace all of my buffer systems on my carbines with this. It makes the recoil impulse so minimal I have nothing to compare it to. I’m so used to shooting them now that regular carbine buffer systems feel like a 308 to me.
3/3 found this helpful
Helpful Positive Review Perfect extension by Jc, Verified Owner, January 31, 2021
In spec tube for one of the smoothest recoiling systems for the AR platform! I would recommend this system for anything12.5 and under as it pretty much eliminated any recoil for me on my properly gassed ARs.
4/4 found this helpful
Helpful Positive Review VLTOR A5 Receiver Extension by Troy, May 28, 2019
VLTOR A5 Receiver Extension/System is a great product and should help with slowing down the BCG on my DD MK18. Optics Planet is a great company to do business with. My only issue was with FedEx and the 2 day shipping. I ordered the item on 5/6/19 ...
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4/4 found this helpful
Most Recent Reviews It's solid and does its job by BLU, Verified Owner, September 1, 2025
I'm giving this product a four-star review because, honestly, it's okay. There's nothing flashy or exciting about a buffer tube, but this one does exactly what it's supposed to do without any fuss. I have no dislikes about it. It installed without a...
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Most Recent Reviews 20” upper. by Elliott Jones, April 20, 2025
I got this to have a collapsible stock on 20” upper. Works great!
Most Recent Reviews A5 buffer tube by Tor, Verified Owner, May 14, 2024
Tube with small hole on one end, big hole on the other end and threads on the OD. Seems like it will work just fine.
Read All 11 Reviews
Additional Features: Receiver extension is Mil-Spec dimensioned and will only accept M4 type Mil-Spec buttstocks , Receiver is designed to use the VLTOR A5 spring and buffer kit only which is sold separately , Space between the seven positions of the receiver extension 0.650 in Condition: New

Code: 24Y-RBT-REA5

MPN: RE-A5

List: $54.95Save $3.96
$50.99

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Product Info for Vltor REA5 A5 Receiver Extension RE-A5 M4 Aluminum Black

Vltor REA5 A5 Receiver Extension RE-A5 M4 Aluminum Black - The RE-A5 Receiver Extension is a seven position receiver extension designed to work with the VLTOR A5 system. This receiver extension is slightly longer than the traditional M4 receiver extension and is designed to work with Mil-Spec dimensioned M4/AR-15 type collapsible stocks. It is made from impact extruded 7075-T6 aluminum with hard coat anodized finish. The positions are numbered and are visible through the witness hole on most stocks. It helps with snag-free sliding of the buttstock.image

WARNING: California`s Proposition 65

Specifications for Vltor REA5 A5 Receiver Extension RE-A5 M4 Aluminum Black:

Mfg Item Num:  REA5
Supplier SKU:  99495
Category:  FIREARM PARTS
Type:  Extension Tube
Model:  M4
Finish:  Black
Material:  Aluminum

Features of Vltor REA5 A5 Receiver Extension RE-A5 M4 Aluminum Black:

  • Seven position receiver extension made from impact extruded 7075 T6 aluminum
  • Hard coat anodized
  • Positions are numbered and are visible through the witness hole on most stocks
  • Snag-free sliding of the buttstock

Vltor REA5 A5 Receiver Extension RE-A5 M4 Aluminum Black Orderable Models

List of Orderable Models

Vltor REA5 A5 Receiver Extension RE-A5 M4 Aluminum Black , MPN: RE-A5 , Code: 24Y-RBT-REA5

Vltor REA5 A5 Receiver Extension RE-A5 M4 Aluminum Black Unavailable & Discontinued Models

List of Unorderable Models

USED Vltor REA5 A5 Receiver Extension RE-A5 M4 Aluminum Black, EDEMO9, Used, Condition Like New , MPN: RE-A5-EDEMO9 , Code: 24Y-RBT-REA5-EDEMO9
USED Vltor REA5 A5 Receiver Extension RE-A5 M4 Aluminum Black, EDEMO10, Used, Condition Fair , MPN: RE-A5-EDEMO10 , Code: 24Y-RBT-REA5-EDEMO10
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