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Q&A for Stern Defense SD AR15 Barrel — 7 Questions & 9 Answers

Name Stern Defense SD AR15 Barrel (4.1)
As Low As $61.49 Save Up to 62%
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Q
Moe, member, from TX, United States, asked on October 06, 2020

Are they come with feed ramp?

A
Answered by The Bob, member, from MN, United States, on April 04, 2022

Glock magazine barrels do not have feed ramps. 90% of them produced do not have true "feed ramps". The Glock magazine AR lowers position the magazine about 5 mm from the chamber, and the magazines sit higher and more level with chamber. I'm curious to see what people actually did that say they added feed ramps. There isn't material where it would need to be. Chances are they screwed the barrel up pretty good. If you want to see true 9mm AR barrel feed ramps, look at TACCOM barrels. I have a Stern Barrel for my 9mm and only complaint is I didn't realize it wasn't a true 4"s, its 3"s by any other standard. TACCOM also makes a $20.00 part that can be added to your 9mm upper to ramp the 5mm (.200") between magazine lip and barrel. Also own a Faxon 9mm AR barrel, and a RTB/BA 9mm AR barrel, no feed ramps. I have installed TACCOM Feed ramps in one upper, but wasn't having any issues feeding with it. Had a customer that wanted one installed so ordered one for myself.

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Q
Aaron, guest, from KY, United States, asked on December 28, 2021

Is the 45 acp 4in barrel +p rated?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on January 24, 2022

The manufacturer doesn't specifically state if these barrels are rated for +P ammo. Email us at techsales@opticsplanet.com for more information.

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Q
Troy Brown, member, from MI, United States, asked on September 07, 2021

What thread pitch is the .45acp 6” barrel?

Expert Answer
A
Answered by Tom B, Gear Expert, from IL, United States, on September 14, 2021

The 6" 45 barrel has a .578x28 thread pitch.

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Q
DavidH, member, from CA, United States, asked on July 10, 2021

Do you need to cut a feed ramp into this barrel after purchasing? Or is this ready to be installed onto an AR upper?

Expert Answer
A
Answered by Tom B, Gear Expert, from IL, United States, on September 14, 2021

These barrels are ready to be installed.

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Q
Steve, member, from MS, United States, asked on April 07, 2021

Has anyone tried a barrel swap on the extar?

Expert Answer
A
Answered by Patrick, Gear Expert, from IL, United States, on October 22, 2021

Please email us at techsales@opticsplanet.com so we can further assist you with your question.

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Q
TheAnalyst, member, from AZ, United States, asked on October 11, 2020

Does this include a Barrel Nut for installation?

A
Answered by Mike B., member, from IL, United States, on February 04, 2021

This does not come with a barrel nut, barrel nuts are typically included with the hand guard.

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Q
Devon, member, from PA, United States, asked on April 18, 2020

gas tube length?

A
Answered by Mike B., member, from IL, United States, on February 04, 2021

These barrels are for blowback firearms and don't require a gas tube.

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