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Q&A for Aero Precision M5 20in .308 Winchester RM15 Complete Upper Receiver — 48 Questions & 52 Answers

Name Aero Precision M5 20in .308 Winchester RM15 Complete Upper Receiver (4.4)
As Low As $629.99 Save 10%
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Q
Michael Hayes, member, from NC, United States, asked on October 18, 2020

Does or come with a charging handle and bcg?

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on June 26, 2021

No, this upper receiver does not come with the bolt carrier group and charging handle.

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Q
Donald, member, from IL, United States, asked on October 03, 2020

Will this work with a DPMS Gen 1 lower receiver?

A
Answered by Josh, member, from TX, United States, on October 12, 2021

As long as it is a true Gen 1 "high profile", many 80% lowers are said to be Gen 1, however they are actually low profile! While they will work, the fit is not all that great and there is a gap between the upper and lower

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Q
Abel B, member, from TX, United States, asked on October 26, 2022

Will this upper fit a R25 Lower? Also are all Aero precision uppers made for Dpms gen 1 lowers?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on November 02, 2022

The Aero Precision M5 20in .308 Complete Upper Receiver will work with DPMS Gen 1 High Profile lowers. The Aero Precision M5 20in .308 Complete Upper Receiver should work with a R25 lower.

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Q
TWATTS, member, from CA, United States, asked on April 16, 2022

Is the gas system adjustable on this upper?

Manufacturer Answer
A
Answered by Aero Precision USA, Manufacturer from WA, United States, on April 27, 2022

This complete upper does not feature an adjustable gas block.

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Q
brian, member, from CA, United States, asked on September 01, 2020

Will this upper fit to any AR-10 or LR 308 lower?

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on June 26, 2021

These M5 uppers from Aero Precision are Gen 1 DPMS LR308 pattern uppers and are compatible with Gen 1 DPMS LR308 lowers.

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Q
John, member, from VA, United States, asked on August 28, 2020

Will this upper shoot .308 & 7.62x51?

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on June 26, 2021

Yes, you can fire 7.62x51 and .308 out of this barrel.

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Q
pyork1991, member, from OH, United States, asked on May 16, 2020

does this fit on a ar-10 lower?

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on June 26, 2021

Aero Precisions .308/6.5 Creedmoor uppers are Gen 1 DPMS pattern uppers and are only compatible with Gen 1 DPMS pattern lower receivers.

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Q
Frank, guest, from OH, United States, asked on April 05, 2023

Will this fit a Gen II DPMS 308 Lower

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on April 06, 2023

The Aero Precision M5 20in .308 Complete Upper Receiver is not compatible with DPMS Gen 2 lower receivers. DPMS Gen 1 lowers will work, as well as Aero Precision M5 lower receivers.

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Q
Craig, member, from FL, United States, asked on November 22, 2022

Will this fit snug on a gen 3 lower?

Manufacturer Answer
A
Answered by Aero Precision USA, Manufacturer from WA, United States, on December 15, 2022

The M5 platform is built to the AR308 pattern, with a DPMS High Profile (.210) Tang rail and 1-7/16 x 16 TPI. Please be advised that Aero Precision .308 products are machined to AR .308 specs, which is similar but not the same as DPMS Gen 1. Unfortunately, because there is no set standard, Aero Precision is unable to guarantee compatibility with any other manufacturer’s products within this platform.

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Q
Evan, guest, from NC, United States, asked on April 26, 2022

Is it compatible with the 308/7.62 boat Carrier group with 9310 bolt?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on May 06, 2022

The Aero Precision M5 20in .308 Complete Upper Receiver w/ ATLAS R-ONE Handguard is compatible with the Aero Precision .308 Bolt Carrier Group. The bolt is 9310 steel in that BCG and is compatible with this upper.

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