As many of us know, most AR-10s are overgassed from the factory. The most controllable way to deal with that is an AGB, but not everyone is willing or able to install one. Enter the Bootleg adjustable BCG. They make them for AR-15s too, of course, but this is the DPMS pattern BCG. TLDW; it works well. My BCA-10 is so overgassed without it that it stovepipes, even with a flow through can. In fact, the rifle runs fine without a can and the BCG set to full suppressed.
The Easy Button for overgassed AR-10s: Bootleg BCG Review
- Thread starter Bluedog82
- Start date
As many of us know, most AR-10s are overgassed from the factory. The most controllable way to deal with that is an AGB, but not everyone is willing or able to install one. Enter the Bootleg adjustable BCG. They make them for AR-15s too, of course, but this is the DPMS pattern BCG. TLDW; it works well. My BCA-10 is so overgassed without it that it stovepipes, even with a flow through can. In fact, the rifle runs fine without a can and the BCG set to full suppressed.
That BCG works well for a rifle tuned to run well unsupressed. That way, you can turn it to the suppressed setting when adding a high back pressure can. In your case, you have to turn it to the max suppressed setting to run unsuppressed. What are you going to do when you add a suppressor?
In your case, it would be good to add a YHM suppressor gas block and tune your rifle to run properly unsuppressed and then use the BCG to dial things in when adding a suppressor.
In your case, it would be good to add a YHM suppressor gas block and tune your rifle to run properly unsuppressed and then use the BCG to dial things in when adding a suppressor.
It runs great suppressed, especially with the SRBS. Yes, a gas block would obviously be the best play here, but I’m reviewing the rifle so I’m trying not to change too much.
Another good option. This is simply the easiest way to tune your gas, albeit not the most effective.
Ahh the return of the $530 rifle that needs a $300+ adjustable BCG and $150 buffer to try and get it to run properly. How has the accuracy been?
I would be curious how much percentage-wise that BCG is able to restrict gas compared to other methods though. Also I don't know how changing a BCG isn't dramatically "changing" the rifle since the BCG and barrel are without question the two most important components for a rifle's long term reliability.
I would be curious how much percentage-wise that BCG is able to restrict gas compared to other methods though. Also I don't know how changing a BCG isn't dramatically "changing" the rifle since the BCG and barrel are without question the two most important components for a rifle's long term reliability.
One thing I learned is about buffer weight. My AR-10 is the Windham Weaponry R16-SFST-308. Before every firing it, I changed to a rifle tube and the Magpul PRS Gen III adjustable stock. And wound up with an overgassing problem. The rifle has a fixed mid-length gas block, non-adjustable.
So, I shuffled around some buffer weights until I got it weighing 6.1 ounces, which did the trick. They pop out just before 3 o'clock, no stovepipe or failure to eject compounded by the next round feeding.
But, I get it, too. By the time one takes a relatively inexpensive rifle and tunes it with other gear, how much is spent compared to buying a more expensive rifle that is plug and play.
Also, to be fair to WW, I was the one who changed stocks without thinking about buffer weights until I had the overgassing problem. I should have Billy Madison'd myself.
So, I shuffled around some buffer weights until I got it weighing 6.1 ounces, which did the trick. They pop out just before 3 o'clock, no stovepipe or failure to eject compounded by the next round feeding.
But, I get it, too. By the time one takes a relatively inexpensive rifle and tunes it with other gear, how much is spent compared to buying a more expensive rifle that is plug and play.
Also, to be fair to WW, I was the one who changed stocks without thinking about buffer weights until I had the overgassing problem. I should have Billy Madison'd myself.
View attachment IMG_8531.jpeg
5rds of M80 ball into 1.5” or so, pretty pleased with that. I broke a firing pin around 220rds in, and BCA sent over two more. My review is absolutely going to note that if you want to suppress one of these, you’ll probably have to make changes. The Bootleg and/or buffer are simply the least “invasive” ways to do so.
BCA should be banned from assembling AR-10 imitations.
They make DPMS seem like a bourgeoisie flex on the poors.
They make DPMS seem like a bourgeoisie flex on the poors.
Ok, well that changes the circumstances and I get your point. Still, for the benefit of those that might stumble across this thread doing research, I'd like to point out that you're using a low back pressure can. If you were using something like a Polonium, it may not have worked out as well.
Don't get me wrong, the Bootleg BCG is a killer accessory for a well or slightly overgassed rig when you want to run a high back pressure can, but not so great with a severely overgassed rig that you are going to use a high pressure can on. There just isn't enough tuning overhead with the BCG.
But then again, as in your situation, it's certainly a no fuss remedy. I have one laying around. That and a couple of riflespeed gas blocks. I just prefer to go with the $18 YHM gas block and drill it out to the port size that I want.
I mentioned in the video that it worked just fine with the A-10 7.62 and DDC Enticer S TI; a little more felt recoil, but it still functions well. The YHM is almost certainly the best budget option.
Similar threads
