Bear Creek Arsenal Side Charging .450 Bushmaster Cycling Issues | SOLVED!

What mags are you using

awesome ty !!!!!!!

I am having this issue, I sent it back to BCA and they said there was no feeding issues. I have bought the H3 buffer but not yet installed it. Also I use the receded Hornady black and the ASC mag.

I guess the upside to BCA is that they create new gunsmiths by necessity with every upper sold.

Great video man !

Remove your gas tube. You will see that each end is tapered down reducing the tube’s diameter. This is from being cut with a tubing cutter. Open those ends back up. Get a drill bit that fits exactly the ID of the gas tube. Use that bit to open up your barrel’s gas port. Install an adjustable gas block. Now you not only get fully adjustable gas, but you now have the mechanism in place to reduce your felt recoil.

I have metal 20 rnd Old school Gi's with Tromix followers, works amazingly well. Any other mag with more capacity absolutely suck. Any suggestions?

I have a 450 bushmaster upper replaced the ejector and extractor no more fail to eject

I had a simlar issue, I figured out my extracts was just barely contacting against the teeth on the barrel extension. A little dremel work and no problem since. Look for a rub mark on your extractor and small guages in the cartridge rim.

I like the way that gun slug's you back. You can tell your shooting something. Would not want to be on the wrong end of that.

Awesome !!!!

Many of these complete lower kits come with heavy buffer springs. Which causes the bolt not to go back all the way when fired. If it loads fine when you drop the bolt but not when fired, gun is under gassed, spring is to heavy. I run a wolf lite spring and a h2 buffer in a 50 Beowulf.

The problems are all
Easily solved by taking your BEAR CREEK uppers and throwing them as far as you can in a lake.
There junk. I had one.
Or throw $$$$ and lots of time into them and hope for the best.
Save yourself the headache and buy Quality with good reviews .

either a heavier buffer or lighter spring .

have fun finding ammo builds like these are a fad that will fade away with time people will start to realize the price there paying for ammo is to much why add more expensive rounds to ur collection wen most people cant even afford 308

Same exact issue here BC upper and stopped misfeeding with an H3 and a braided buffer spring as well. Easiest fix and cheap depending on the buffer you select.

What is with the jazz hand when putting rifle on safe? Why does every “guntoober” do that?

I can’t get mine to chamber a round.The bolt will not close on a round!!! So far it’s a POS!!

Nice Video.What magazine are you using with your 450 bushmaster.

Mine came through with the gas port drilled too small. It took a little bit to figure it out. I sent the upper back and they drilled it to spec. Problem solved.

Had all the aforementioned issues, .091 drill bit in the gas port fixed it!

I use that same buffer with my 450bm and 556 works great for both.

I had this problem in my BCA AR10 side charger. I was shooting 147 grain loads.
When I started shooting 180 grain loads…It ran like a sewing machine…no malfunctions whatsoever. It seems like the heavier loads generate enough bolt thrust to cycle the gun completely.
Do I get another buffer tube spring?

WOW thanks for a solution video. So many post problems but not the final solution. For me….the pewpew would eject but fail to pickup the next round with a standard carbine buffer and spring. So thinking it was not able to cycle back far enough (for a number of reasons) to pick up the next round I have tried several lighter buffers with no success. Maybe it is cycling to fast so I am trying a heavier buffer or spring next. Thanks.

Common since my guy

I was having an issue with the bolt over running the next round. My solution was to use the H3 buffer and with the H3 buffer it doesn’t even cycle the bolt back… do I have a gassing issue?

Heavy buffer and heavy spring is the way to go . If it is a rifle you have yo go with 308 buffer

Thanks I’ll buy one when I order my kit

Well sum..bitch…I just got mine on the range and it did the same…just pulled up your video and problem solved hopefully…drive back home and throw in a different buffer weight

I run a red springco buffer spring with a 5.2 oz buffer in my 450 bushmaster. It shoots perfect and the shell extraction is at 3-4 o’ clock.

I am actually running an extra heavy buffer.. have to look it up, 6.8oz. H4 . makes it a smooth shooter .