Battle Rifile! AR-10 .308 Build: M5E1 Upper Receiver Build (Links in Description)

In General

Today we're building the Aero Precision M5E1 .308 Upper Receiver


Aero Precision M5E1 Complete Upper ►

Aero Precision M5 (.308) Stripped Lower Receiver: ►

M5 .308 Enhanced Lower Parts Kit: ►

M5 .308 Carbine Buffer Kit: ►

Magpul STR Stock, Mil Spec: ►

.308 / 7.62 Bolt Carrier Group, Complete – Nickel Boron: ►

AR .308 Ambidextrous Charging Handle: ►

Aero Precision Flip-Up Sights ►

VG6 GAMMA 7.62 muzzle brake: ►

👉Guns & Parts at Dealer Costs

Geissele Super Dynamic 3 Gun (SD-3G) Trigger:


Strike Industries Ultimate Dust Cover: ►
Strike Industries 308 Charging Handle: ►

Atibal XP8 1-8×24 Rifle Scope: ►
Atibal Tactical Precision Mount 30mm QD: ►


MCP – Free shipping over $49

NAF - $10 Off $99 + Free S/H

NAX – $15 Off $150 + Free S/H

M8Y – $20 Off $200 + Free S/H

ETS Clear Mags


My Favorite Cleaning/Lube




Wheeler Hammer & Punch Set ►

Real Avid Smart Bench Block ►

MGW Sight Pusher ►

VISM Sight Pusher ►

Drill Press ►

Drill Press Vise ►

Dremel 4000 w/ 50pc accessories ►

Dremel Flex Shaft ►

Dremel Carbide Cutting Bit ►

Get The File Set Here ►

4” Bench Vise ►

Magnetic Vise Jaws ►

Why 89.7% of Americans Can't Afford This Gun

** Affiliate disclaimer: some of the above links maybe affiliate links, which may generate me a sales commission. For example, my YouTube Gear listed above is in association with the Amazon affiliate program and I’m an amazon associate.

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JJMerlino 12 months ago

My rear take down pin is held in place by a spring and detent installed from rear part of lower, next to buffer tube. Do I need a different spring. Mine Appears to be too short.

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rayzzter 12 months ago

I used 2 springs.

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Michael Taylor
Michael Taylor 2 years ago

I follow you on youtube as well and I am looking forward to completing my build one day soon. Have the upper and lower. now I am on a waiting list. lol #babybeforeguns

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xdsman 2 years ago

I work in the industry and cannot stress enough how important a proper gun build is for safety reasons. Screw You Tube!

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Canuck 2 years ago

Bolshevik Communist Google ruins everything they touch. Anyone that still uses Google for ANYTHING needs a slap upside their empty head.

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KentuckyJustice 2 years ago

I may be wrong, but when I put a gas tube in a gas block, I just use a pair of channel locks and squeeze it in there, then tap it once or twice with a punch. When I put the gas block on, I put it on up-side-down first, because that front set screw hole mates exactly with the gas port. I use a feeler gage to determine precisely how far, if any, the gas block should be backed away from that lip on the barrel. Once I have that, I put the barrel on the receiver, match it up with my line (like you have), use the feeler gage to set it, then tighten her up with some thread locker. If you do a lot of those, there's a little jig you can buy to line you up correctly for dimpling your barrel.

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werunguns 2 years ago

Great vid bro!

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Chesterjohn 3 years ago

Where are the links to Amazon for the punch set?

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