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300blk
The .300 AAC Blackout (designated as the 300 BLK by the SAAMI and 300 AAC Blackout by the C.I.P.), also known as 7.62×35mm is a rifle cartridge developed in the United States by Advanced Armament Corporation (AAC) for use in the M4 carbine. Its purpose is to achieve ballistics similar to the 7.62×39mm Soviet cartridge in an AR-15 while using standard AR-15 magazines at their normal capacity. Care should be taken not to use 300 BLK ammunition in a rifle chambered for .223/5.56 or 7.62×40mm Wilson Tactical.
9" Core15 300BLK barrel. ~ 1000 rounds through it. $60 shipped. I'll take PayPal gift or + 4%. Please post "I'll take it", then email for best response.
Normally you can substitute a slightly lighter bullet with the load data of a heavier bullet and not have an issue. But the Sierra load data I found (pic below) for 175-200gr FMJs has an unexpectedly huge gap in minimum charges with CFE BLK between the 180gr and 190gr FMJs.
180gr stops at...
$150 Lightweight profile, SS Black Hole Weaponry 300blk barrel, 1x8.5 twist, with a 4 prong “rook” flash hider, 5/8-24. The flash hider is not pinned/welded. Barrel is 14.5” and the flash hider is 2” giving an overall 16.5” barrel. Comes with the gas block and pistol length gas tube pictured...
Diamondback 16" upper in 300 blk
Pistol length gas system.
220 rounds through it.
Comes with charging handle and bcg.
$325
I'm in Tigard, near Tigard Pawn
Just found 300 AAC Freedom Buckets (160 rounds of 120 grain) at Palmetto State Armory for 79.99 and free shipping. These usually sell out fast if you're interested.
At work so dont have a photo handy. Will snap some tonight and can email or text then w/e
Build specs as follows
Round count less the 500
Rainier arms smooth side upper
Seekins 15" noxs rail
16" Rainer arms match grade 300blk barrel(rock creek blank) pistol length gas system so barrel could be...
I've had a 16" 300blk for a couple years. I use it in conjunction with an old 18T AAC 762-SD suppressor. Some subsonics are quieter than others, but it's always been quiet.
I just built a 300blk pistol and took it out to test function and found it to be really loud. I had 3 flavors of...
Got lots of 1# powder for sale. All sealed unless otherwise noted. I prefer meeting F2F anywhere along the Kirkland/Redmond/Renton area. Email is best way to reach me.
Ramshot TAC: $30 (gone)
AA1680: $25 (gone)
H4198: $30 (great for subsonic 300BLK, similar to AA1680, but cleaner) (gone)...
Just bought this rifle about 2 months ago but I had some unexpected medical bills come up so I gotta try to unload it. Overall I spent over $1200 on everything in the picture. Diamondback db15 elite, 300 blackout ar15. 16" barrel, the elite series has the nicer stock, grip,handguard and muzzle...
Had an interesting experience with a Fiocchi round today. I loaded up a magazine with 30 rounds. After 25 rounds there was no issue. Pulled the trigger. Click. Dropped the magazine and tried ejecting the round and my bolt was stuck. Opened up the gun and was able to remove the bolt and to my...
- KAK 4.75 blackout barrel (costs $190 alone when in stock) This is not the value line barrel. It is the 416R, with 5R rifling, 1:7 twist, m4 freedramps, mad from green mountain blank, etc.
- Midwest Industries flash/blast can
- AXE 300 upper
- handguard chopped down for the short barrel. You...
250 + 30 or 40 misc stamped pieces from personly bought and fired factory rounds
Cleaned, tumbled, deprimed, sized, decrimped and primer pockets cleaned, trimmed to 1.358 +/- to 0.002, deburred, tumbled, then cleaned again.
They have been sitting for a lil while but no condition issues.
Mix...
PENDING
I have an unfired Ballistic Advantage DRP barrel in 300blk. Will include new low pro gas block, new SS gas tube, and flash hider!
Need it shipped? Guess what!? Free shipping!!!
Asking 150
14.5 MAS Defence nitrate barrel
Pined & welded .30 Cal Phantom LT/LTA Q.D. Mount
Midwest Industries M-Lok handgurad
Pistol length gas
Don't remember the manufacture on the upper, BCG or CH
Scope and mount available but not included
Maybe around 400 rounds. It runs well with S&B 124 gr, kind of...
I have a 300 blackout AR15 I put together a few years back that I took out one time and shot only a few boxes of ammo through.
-Shadow Ops Weaponry billet receiver set
-SLR handguard
-CMC flat drop in trigger
-Troy stock/grip (will change stock if you don’t like it)
-NiB BCG
-Raptor CH
-Custom...
Selling a 9.5" Ballistic Advantage barrel chambered in 300 blackout. It's been on my pistol for about 200 rounds but I'm going in a different direction. It is in excellent shape, and is drilled for a pin on gas block, of which the low profile one pictured is included. It's a BA gas block as...