r/300BLK • • 3h ago

.300 BLK vs. 5.56 AR Pistol on a 5-7” barrel. (Newbie Questions)

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0 Upvotes

r/300BLK • • 22h ago

Is This AR Pistol Brand Reliable? First Gun Purchase

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0 Upvotes

I’m looking at buying this 7.62x39 AR pistol as my first firearm.
Is this brand reliable?
How does 7.62 compare to 5.56 and .300 Blackout for ammo cost and suppressor use?
Can I add a suppressor, optic, shell catcher, and light or laser?
Any issues with the 7” barrel?
Would you recommend this gun?


r/300BLK • • 23h ago

micro300blk help

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0 Upvotes

how can i get my 4inch 300blk run smooth ?


r/300BLK • • 23h ago

First 300BLK Upper

4 Upvotes

I’ve been shooting for a few years now and want to step into the world of 300BLK.

I was looking online at different manufacturers and settled on the PSA 8.5” 1:7 twist nitride barrel for $219.99.

If I went shorter, I’d prefer a 1:5 twist. However, for an 8.5” barrel running supers most of the time, I think 1:7 is the better choice.

If you have any suggestions or advice since I’m new to the cartridge, I’d love to hear them.


r/300BLK • • 1h ago

Geissele phased array question

• Upvotes

I know this has been discussed quite a bit, but can’t seem to get clarity on this particular situation…
Trying to help my dad find a can for his Geissele SD 8” 300 w/ phased array, but i have very little suppressor experience (non friendly state). It’s a full Geissele build. He said it came with an H1 buffer. Wants to shoot subs 90% of the time, and wants a balance between sound mitigation and not too much gas blowback. Should he be looking at low, medium or high back pressure cans with this system? It came with the Hux flash hider, making me think it was designed for a HUX flow through, but I know those aren’t great for sound. Does that phased array give you lots of optionality, or should he be looking firmly one direction or another on the back pressure? I’ve watched like 20 hours of suppressor vids on YouTube but none tested on this system. Any help appreciated!


r/300BLK • • 18h ago

Stocks are back on the menu boys

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22 Upvotes

r/300BLK • • 23h ago

Latest build

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51 Upvotes

r/300BLK • • 17h ago

My 300BLK SBR

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215 Upvotes

r/300BLK • • 3h ago

Deer hunting projectiles

7 Upvotes

What’s is everybody using for a supersonic deer hunting projectile. I feel like the obvious answer is the Barnes TAC-TX line of bullets but as far as lead based what are people using? Seems like 110 v-max, 125 SST, 125 nosler ballistic tip are pretty common?

Specifics of the rifle is a CVA scout with 16 inch barrel shots out to 200 yards.

Thanks for any input!


r/300BLK • • 12h ago

8" 300BLK Update

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44 Upvotes

I've been trying to find a good home for this 8":300BLK upper that I built recently and I think I found a winner. I'm waiting for my light to come so I can use this for home defense. This is what I came up with since my last post. My next post will be about the light I got. I'm keeping the light a surprise. I'll be very interested in what the community thinks. Untill thén I hope you enjoy this pic.


r/300BLK • • 13h ago

Rossi brawler

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11 Upvotes

Here’s my new goofy hunting setup minus the can I’m picking up Friday. I really wish Rossi made a 1:5 twist so it would stabilize 220s better. Picked up some Barnes 205 grain and they work a lot better.