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Phase 5 Weapon Systems Inc The A2 Rifle Receiver Extension Tubes A2 Rifle Buffer Tube

Phase 5 Weapon Systems Inc The A2 Rifle Receiver Extension Tube, Black, A2 Rifle Buffer Tube
Phase 5 Weapon Systems Inc The A2 Rifle Receiver Extension Tube, Black, A2 Rifle Buffer Tube
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Phase 5 Weapon Systems Inc The A2 Rifle Receiver Extension Tube, Black, A2 Rifle Buffer Tube

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Questions & Answers
What is the length of this tube ? Expert Answer

The Phase 5 Weapon Systems Inc The A2 Rifle Receiver Extension is 10" in overall length and weighs 204g.

by Ethan, Gear Expert, May 24, 2022
What is the depth/length of the threads? My current tube has ½". It doesn't thread in far enough on the poly lower that I recently purchased.

Phase5 does not specify the threaded dimensions of the buffer tube. You would need to contact them directly for that info.
https://phase5wsi.com/contact-us/

by Brandon, Verified Owner, April 9, 2021
View All Q&A You Have a Question? Ask!

Product Discontinued by Manufacturer

Phase 5 Weapon Systems Inc The A2 Rifle Receiver Extension Tubes has been discontinued by Phase 5 Weapon Systems Inc and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Lower Parts, AR15 Buffer Tubes yourself to try and find the perfect replacement for you!

Product Info for Phase 5 Weapon Systems Inc The A2 Rifle Receiver Extension Tubes

The A2 Rifle Receiver Extension Tube is a type III hard black annodize. The A2 Rifle Receiver Extension Tube is design to fit a fixed A2 stock. Material: 6061-T6 Aluminum.image

Features of Phase 5 Weapon Systems Inc The A2 Rifle Receiver Extension Tubes

  • Material: 6061-T6 Aluminum
  • Includes tube only

Package Contents:

  • Phase 5 Weapon Systems Inc The A2 Rifle Receiver Extension Tubes

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12% Bonus Bucks
IMI Defense G2 Heckler & Koch HK417, Knight Armament Mark 11, Knight's Armament M110, SIG Sauer SIG 716, SR-25, 7.62x51mm NATO, 20 Round Rifle Magazine, Black, IMI-ZMG07BLACK
IMI Defense G2 Heckler & Koch HK417, Knight Armament Mark 11, Knight's Armament M110, SIG Sauer SIG 716, SR-25, 7.62x51mm NATO, 20 Round Rifle Magazine, Black, IMI-ZMG07BLACK
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IMI Defense G2 Heckler & Koch HK417, SIG Sauer SIG 716, SR-25, 7.62x51mm NATO, 10 Round Rifle Magazine
IMI Defense G2 Heckler & Koch HK417, SIG Sauer SIG 716, SR-25, 7.62x51mm NATO, 10 Round Rifle Magazine
As Low As (Save Up to 13%)
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Lancer Systems L7AWM Gen 2 AR-10/SR-25 .308 Winchester 5 Round Rifle Magazine, Opaque Flat Dark Earth, L7G205FDE
Lancer Systems L7AWM Gen 2 AR-10/SR-25 .308 Winchester 5 Round Rifle Magazine, Opaque Flat Dark Earth, L7G205FDE
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Hexmag SR25/AR .308Win 10 Round Rifle Magazine
Hexmag SR25/AR .308Win 10 Round Rifle Magazine
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Lancer Systems L7AWM Gen 2 AR-10/SR-25 .308 Winchester 25 Round Rifle Magazine, Opaque Black, L7G225BLK
Lancer Systems L7AWM Gen 2 AR-10/SR-25 .308 Winchester 25 Round Rifle Magazine, Opaque Black, L7G225BLK
List: $59.99 (Save 25%)
$44.99
Sentry SR-25/.308 Single Mag Pouch
Sentry SR-25/.308 Single Mag Pouch
As Low As (Save Up to 10%)
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Blue Force Gear Ten-Speed Triple Sr25 Mag Pouch, Multicam HW-TSP-SR25-3-MC
Blue Force Gear Ten-Speed Triple Sr25 Mag Pouch, Multicam HW-TSP-SR25-3-MC
List: $91.99 (Save 19%)
$74.95
Lancer Systems L7AWM AR-10/SR-25 .308Win/7.62x51mm NATO/6.5mm CM 10 Round Rifle Magazine, Translucent Smoke, 10, L7-G2-10-SMK
Lancer Systems L7AWM AR-10/SR-25 .308Win/7.62x51mm NATO/6.5mm CM 10 Round Rifle Magazine, Translucent Smoke, 10, L7-G2-10-SMK
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$39.99
Blue Force Gear Ten-Speed Double Sr25 Mag Pouch, Multicam HW-TSP-SR25-2-MC
Blue Force Gear Ten-Speed Double Sr25 Mag Pouch, Multicam HW-TSP-SR25-2-MC
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Blue Force Gear Ten-Speed Single SR25 Mag Pouch, Multicam HW-TSP-SR25-1-MC
Blue Force Gear Ten-Speed Single SR25 Mag Pouch, Multicam HW-TSP-SR25-1-MC
List: $53.54 (Save 16%)
$44.95
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IMI Defense G6 Enhanced 7.62X51 20 Round Rifle Magazine
IMI Defense G6 Enhanced 7.62X51 20 Round Rifle Magazine
List: $26.99 (Save 15%)
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Amend2 Mod-2 Model Rifle Magazine, SR-25/AR-10, 7.62x51, 10-Round, FDE, 762MOD2FDE10-10RD
Amend2 Mod-2 Model Rifle Magazine, SR-25/AR-10, 7.62x51, 10-Round, FDE, 762MOD2FDE10-10RD
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PMC Ammunition 762X X-Tac 7.62x51mm NATO 147 grain Full Metal Jacket Boat Tail (FMJBT) Brass Centerfire Rifle Ammunition
PMC Ammunition 762X X-Tac 7.62x51mm NATO 147 grain Full Metal Jacket Boat Tail (FMJBT) Brass Centerfire Rifle Ammunition
(2)
List: $25.00 (Save $2.01)
$22.99
$1.15/Round
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Winchester USA 7.62x51mm NATO 149 Grain M80 Full Metal Jacket Brass Cased Centerfire Rifle Ammunition
2 models
Winchester USA 7.62x51mm NATO 149 Grain M80 Full Metal Jacket Brass Cased Centerfire Rifle Ammunition
(11)
As Low As (Save Up to 30%)
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$1.47/Round
Magtech 7.62X51 M80 147 Grain Ball Brass Cased Rifle Ammunition
Magtech 7.62X51 M80 147 Grain Ball Brass Cased Rifle Ammunition
(1)
List: $69.71 (Save $6.22)
$63.49
$1.27/Round
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Phase 5 Weapon Systems Inc The A2 Rifle Receiver Extension Tubes Unavailable & Discontinued Models

List of Unorderable Models

  • Phase 5 Weapon Systems Inc The A2 Rifle Receiver Extension Tube, Black, A2 Rifle Buffer Tube , MPN: A2 Rifle Buffer Tube , UPC: 813318022790 , Code: 1U8-RBT-P5WS204-A2-RIFLE-BUFFER-TUBE
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Last updated 2026-09-05 UTC.