300 BLK rifle upgrade thread

[pronstar]

As posted elsewhere, I got a sweet deal on a Modern Outfitters / Modern Carbine 300 BLK rifle with 16” barrel.
It was a DPD trade-in and in very good condition, and has their full lifetime warranty.

Basic deets here:
https://modern-outfitters.com/product/mc5/

It’s very light, a bit over 6 lbs bare.
So I want to keep with the lightweight theme.

First mod:
Vortex HD LH (Light Hunter) scope with Aero Precision lightweight mount.

Weight as shown:
7.6 lbs

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[pronstar]

Next up:
Magpul angled foregrip.

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[pronstar]

Next up:
Ambi charging handle to replace the non-ambi one it came with.

The fact that it’s matching gray may have influenced my decision

For some reason these Radian Raptors are on sale everywhere lately...but even $50 is borderline criminal

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[easy rider]

Nice! An Odin Works minimalist stock might shave off a few more ounces.

 

[Mikewood]

“and had their full lifetime warranty. ”.

 

[FireInTheWire]

2 turn tables and a microphone

 

[easy rider]

That rifle is far too clean, the real fun is in the shooting!

 

[pronstar]

“and had their full lifetime warranty. ”.

Why past tense?



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[FireInTheWire]

That rifle is far too clean, the real fun is in the shooting!

Hell- the 5 second rule wouldn't apply to his work bench either

 

[pronstar]

That rifle is far too clean, the real fun is in the shooting!

Yeah I can’t wait to put some rounds thru it...haven’t shot it yet.

And it doesn’t look like DPD put many rounds thru it, either.


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[easy rider]

Yeah I can’t wait to put some rounds thru it...haven’t shot it yet.

And it doesn’t look like DPD put many rounds thru it, either.


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I built mine, my 300BLK is one of my favorite rifles to shoot.

(Oh yeah, before I lost it in a boating accident that is)

 

[Charlie]

Questions regarding using a pistol buffer tube on a rifle with a 16" barrel: will it function properly with the shorter gas tube? I'm considering a longer barrel and a stock for the pistol I now have. Any comments would be helpful and appreciated.

 

[easy rider]

Questions regarding using a pistol buffer tube on a rifle with a 16" barrel: will it function properly with the shorter gas tube? I'm considering a longer barrel and a stock for the pistol I now have. Any comments would be helpful and appreciated.

From what I understand, a pistol length is the better gas tube for a 16" barrel on the 300BLK.

 

[Charlie]

From what I understand, a pistol length is the better gas tube for a 16" barrel on the 300BLK.

Thank you, sir! I'll give it a try!

 

[Charlie]

Anybody else?

 

[FireInTheWire]

Anybody else?

I need to measure what came on my 16"

 

[Charlie]

My limited understanding at this time is that rifles basically are going to be 9 or 10 inches and pistol buffer tubes are around 7 inches. But I have very little info on that at this point. That's why I asked.

 

[easy rider]

 

[zackmars]

Questions regarding using a pistol buffer tube on a rifle with a 16" barrel: will it function properly with the shorter gas tube? I'm considering a longer barrel and a stock for the pistol I now have. Any comments would be helpful and appreciated.

A pistol buffer tube is the same inside as a regular collapsible buffer tube.

With how cheap AR's are, it makes more sense to buy or build a second gun

 

[pronstar]

Anybody else?

My google-fu tells me that around 2013 nearly all MFR’s went to pistol-length for all 300 BLK barrels up to 16”...previously some were using carbine length for 16” and up.
It’s doubtful anyone is making a barrel longer than 1” in this caliber.

Probably has something to do with all the powder being burned within ~9” anyway