Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
Questions & Answers
Does it have any stenciled markings, engravings or the Daniel Defense anywhere? Im looking for a tube with no markings. Also, is it a deep black? Expert Answer

This buffer tube should have no engraving or markings.

by Patrick, Gear Expert, November 10, 2021
How long is this buffer tube compares to standard buffer tube?

This is a mil-spec (standard) buffer tube, built to Daniel Defense standards using high quality materials.

by Brandon, Verified Owner, March 10, 2021
Customer Reviews
Helpful Positive Review
Quality Buffer Tube by RM, June 26, 2023
The little manufacturing steps make this slightly more expensive buffer tube a. Better buy compered to lower priced options. Also seems more durable thread/material wise when clamping down the castle nut.
1/1 found this helpful
Most Recent Reviews
Its a buffer tube! by Sosa, Verified Owner, December 24, 2024
I personally bought this buffer tube because it's made by Daniel Defense and I trust their workmanship. But, Its a buffer tube that does what it is intended to do.
Most Recent Reviews
very solid by max, Verified Owner, November 12, 2024
Nice finish and sturdy; I can tell this thing can take a beating which is the theme with all my builds, want them to last a lifetime. Also reasonably priced.
Most Recent Reviews
DD Rifle Tube by LiveFire630, Verified Owner, August 27, 2024
The product is outstanding which you expect no less being DD, but the service and shipping from Optics Planet has always been good an reliable I wouldn’t shop any other place.
Most Recent Reviews
DD buffer Tube by Knowledgeikick, Verified Owner, August 26, 2024
Nothing special about this buffet tube. Seem to be just a standard mil spec buffer tube
Most Recent Reviews
good buffer tube by slothb, Verified Owner, February 21, 2024
It has a quality finish and good fit to my daniel defense stocks as expected. There isnt a bunch of slop like ive had with other tubes.
Read All 14 Reviews
Color: Black Condition: New

Code: DDD-RBT-05-013-16186-EE

MPN: 05-013-16186

UPC: 815604010573

List: $46.00
$45.99

Product Info for Daniel Defense Receiver Extension 6 Position Rifle Buffer Tube

The Daniel Defense Mil-Spec Receiver Extension (Buffer) Tube allows for 6-positions of adjustability with a Mil-Spec collapsible buttstock. 7075-T6 Aluminum. Type-3 Hard Coat Anodized. Fits Mil-Spec Buttstocks.image

Specifications for Daniel Defense Receiver Extension 6 Position Rifle Buffer Tube:

Manufacturer: Daniel Defense
Color: Black
Finish: Type III Hardcoat Anodized
Fabric/Material: 7075-T6 Aluminum
Condition: New

Package Contents:

  • Daniel Defense Receiver Extension 6 Position Rifle Buffer Tube

Daniel Defense Receiver Extension 6 Position Rifle Buffer Tube Orderable Models

List of Orderable Models

  • Daniel Defense Receiver Extension 6 Position Rifle Buffer Tube Fits Mil-Spec Buttstocks, 05-013-16186 , MPN: 05-013-16186 , UPC: 815604010573 , Code: DDD-RBT-05-013-16186-EE

Daniel Defense Receiver Extension 6 Position Rifle Buffer Tube Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Daniel Defense Receiver Extension 6 Position Rifle Buffer Tube Fits Mil-Spec Buttstocks, 05-013-16186 , MPN: 05-013-16186-EDEMO , Code: DDD-RBT-05-013-16186-EE-EDEMO-SC-C
  • USED, Daniel Defense Receiver Extension 6 Position Rifle Buffer Tube Fits Mil-Spec Buttstocks, 05-013-16186 , MPN: 05-013-16186-EDEMO , Code: DDD-RBT-05-013-16186-EDEMO-IN-D
Compare (0)