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Trinity Force Mil-Spec Buffer Tube Kit MNTLU04B

Trinity Force Mil-Spec Buffer Tube Kit, Black, MNTLU04B
Trinity Force Mil-Spec Buffer Tube Kit, Black, MNTLU04B
Trinity Force Mil-Spec Buffer Tube Kit, Black, MNTLU04B
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Trinity Force Mil-Spec Buffer Tube Kit, Black, MNTLU04B
Trinity Force Mil-Spec Buffer Tube Kit, Black, MNTLU04B
2 of 2 images
Trinity Force Mil-Spec Buffer Tube Kit, Black, MNTLU04B

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Questions & Answers
Is this 7075 Aluminum? Expert Answer

It is 6061-T6.

by Armando R., Gear Expert, October 16, 2019
Would this fit with a SBA4? Expert Answer

Yes, it will work with the SBA4 brace as that uses a mil-spec receiver extension.

by Armando R., Gear Expert, October 16, 2019
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Great Price Amazing Quality by Brian, Verified Owner, October 4, 2018
Really high quality at an amazing price I would recommend everyone to buy this! I understand optic planet wanting me to write a lengthy review but.... its a buffer tube its pretty cut and dry... it fits the weapon and functions as expected. I like th...
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1/2 found this helpful
Helpful Positive Review
review of Trinity Force Mil-Spec Buffer Tube Kit by DL2015, Verified Owner, May 30, 2018
Got this for my Ra-tech custom WE-m4. Sadly it doesn't work with the Ra-tech 2015 steel bolt or the older Ra-tech steel bolt. The BCG binds about 20% of the time and it requires you to either smash the forward assist or bang the stock on the ground t...
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3/6 found this helpful
Helpful Positive Review
mr. douglas by doug, Verified Owner, April 24, 2017
For the money you just can't beat this Trinity Force buffer tube kit. I've looked thru about 7 or 8 different gun web sights and no one comes close. Most other competitors are 10 bucks more and on sale. The parts are good, buffer weighs 3oz. I'll ke...
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6/6 found this helpful
Helpful Positive Review
Good to go by Kwalityguy, September 19, 2019
Picked this up when another tube was out of stock. Good kit, low price. Not sure why anyone would buy an expensive tube kit. All mine work equally well. Haven’t noticed a difference between any of them.
1/1 found this helpful
Helpful Positive Review
Decent Tube to Get Your Rifle Running by Josh, March 21, 2019
This was the cheapest available option and it shows. The machining on the inside of the tube is very rough and it makes a ton of noise when you cycle the bolt. However, for a person that doesn't care, it is sturdy and mil-spec and fits fine. It looks...
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2/2 found this helpful
Helpful Positive Review
Check the spring before install by Dan, November 25, 2017
Everything about the kit is great EXCEPT, the spring was too long for the carbine buffer tube it comes with. The finish and quality was great. Unfortunately I had to order a carbine buffer spring to finish my build
4/6 found this helpful
Read All 39 Reviews

Product Discontinued by Manufacturer

Trinity Force Mil-Spec Buffer Tube Kit has been discontinued by Trinity Force 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 Trinity Force Mil-Spec Buffer Tube Kit

The Trinity Force Tube Kit is a wear-and-tear resistant and corrosion resilient kit for your AR-15. These Trinity Force AR15 Buffer Tubes are constructed from aircraft grade aluminum with rolled threading that will outlast and outperform the competition. In addition, the Trinity Force Mil-Spec Tube Kit features an assembly kit that will fit on all Mil-Spec AR 15 lower receivers, complete with buffer spring, 3oz carbine, castle nut, and end plate. The Trinity Force Buffer Tube Kit is the perfect addition to your AR15, AR 308 or AR 10 rifle.image

Features of Trinity Force Tube Kit, TRN-RBT-MNTLU04B

  • Constructed from aircraft grade aluminum with rolled threading
  • This assembly kit will fit on all Mil-Spec AR 15 lower receivers
  • A standard buffer spring and 3oz carbine buffer are included as well as a castle nut and lower receiver end plate

Package Contents:

  • Trinity Force Mil-Spec Buffer Tube Kit, TRN-RBT-MNTLU04B
  • Buffer Spring
  • Carbine Buffer
  • Castle Nut
  • End Plate

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Trinity Force Mil-Spec Buffer Tube Kit Unavailable & Discontinued Models

List of Unorderable Models

  • Trinity Force Mil-Spec Buffer Tube Kit, Black, MNTLU04B , MPN: MNTLU04B , UPC: 812530024612 , Code: TRN-RBT-MNTLU04B
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