Need some help/advice with my bcl

[Mixter]

I’m hoping I can get this worked out as I do love the rifle...
I am a lefty for reference. Also new to this ar platform...

Gas/ejection issue:
- when I first got the rifle it was ejecting straight back into the right side of my face. Not every round but enough to be annoying. I put a superlative arms gas block on it and went to tune the gas port at the range.
Following the instructions i openednthe gas block until it would hold open on the last round. No issues and works great. Then as per the instructions and YouTube videos I took note of where the shells were ejecting.
From what I’ve read/watched with 12 and 6 o’clock being the front and rear of the rifle they were saying that 12-2 is over gassed, 5-6 is under gassed and the sweet spot is between 3&4.
I opened it up a turn at a time and around 7-9 full turns it still ejects rounds around 5 o’clock. I couldn’t seem to get it near the 3&4 and was still getting a couple of rounds on the cheek or in my hoodie.
It looks like from full closed to full open is about 18 full turns on the gas block.
The bolt last round hold open was around 7.5 rotations from closed.
Unfortunately I ran out of ammo so couldn’t keep going but essentially was around 9-10 turns open and was still not getting past 5.
So my question is should I keep opening it and see if it changes or should there be a significant changed when going from 7 (hold open) to 10 rotations open? Hope that makes sense! Lol

Bolt Battery issue:
Second issue is that when I put a mag in (tried both pmag and acr pistol) and racknthe charging handle it doesn’t always close the bolt. It loads the round but there is about a 1/2” or so from being closed and in battery. It doesn’t happen all of the time...maybe every 3 or 4 mag changes. It halons on the odd occasion when firing as well. But not very frequently. I also noticed that when it’s locked open you can hit the buttstock and it will slam shut.
Is this a buffer spring issue?

Looking for useful answers and not the standard “bcl sucks” “shouldn’t have to add parts to make it worse”
Etc etc etc...if I had to do it all over again I would get a lefty stag 10 but they weren’t available yet.
Trying to make this work so I don’t lose a bunch of money on it.

 

[vyrago]

How many rounds have you put through it total? I’ve made no changes to my rifle since I got it and my first 80 or so rounds had ejection issues. After that it’s been fine, so despite your thinking it’s a gas issue, if your round count is still low on the bolt it could be a break-in period issue.

 

[Mixter]

How many rounds have you put through it total? I’ve made no changes to my rifle since I got it and my first 80 or so rounds had ejection issues. After that it’s been fine, so despite your thinking it’s a gas issue, if your round count is still low on the bolt it could be a break-in period issue.

Hmmmm maybe...I’ve only put about 100 or so rounds through it.
The other thing I heard is that they like to run wet...could this be the issue?

 

[vyrago]

I’ve heard that too but I’ve been running mine dry as per winter/cold weather SOP. As it warms up here in Manitoba I’ll begin to run it a little more wet.

 

[55recce]

Lube is good

you might also consider cycling by hand a bunch of times to help wear in...

 

[Bile]

...

 

[Mixter]

The 3-4 o clock ejection pattern is for the regular ar15 case deflector using 556 ammo and cases. Consider that this is a 308 and a completely different case deflector design that might not hold true here. Maybe just use that as a guild and make assessments based on other factors such as reliable lockback and full ejection and injection. My 2 cents

Ah good point didn’t think about the round difference. So if that’s the case unless I can get a better deflector I’m kinds hooped on the ejection angle I think.

 

[Mixter]

I forgot to mention that when the bolt is locked back and you press the bolt release it doesn’t go all the way into battery

 

[cr5]

Keep reducing the gas until it does not lock back any more then open it back up half turn to a full turn for reliability. If it keeps ejecting into your face your SOL.

Not going into battery? Check your cam pin area, BCL have a history of bad machining around there and it has caused binding. A lot of guys were replacing the cam pin with a roller model. I think this is the wrong solution, the rifle should be sent back to have the machining corrected. Simply replacing it with a roller pin is a band-aid solution and it will most likely just reduce the life of the roller cam pin if the machining is not corrected.

Even in the winter I use oil in my AR's, Just use a light oil, no grease, and just on the wear surfaces of the bolt and carrier, don't drown it in oil. Wet does not mean dripping.

Good luck

 

[Mixter]

Keep reducing the gas until it does not lock back any more then open it back up half turn to a full turn for reliability. If it keeps ejecting into your face your SOL.

Not going into battery? Check your cam pin area, BCL have a history of bad machining around there and it has caused binding. A lot of guys were replacing the cam pin with a roller model. I think this is the wrong solution, the rifle should be sent back to have the machining corrected. Simply replacing it with a roller pin is a band-aid solution and it will most likely just reduce the life of the roller cam pin if the machining is not corrected.

Even in the winter I use oil in my AR's, Just use a light oil, no grease, and just on the wear surfaces of the bolt and carrier, don't drown it in oil. Wet does not mean dripping.

Good luck

Not sure what the cam pin is? Also would that be responsible for being able to tap the stock and the bolt slamming shut? It doesn’t take much

 

[mileageman]

Some of the BCL's shipped with the smaller AR15 bolt catch I believe, make sure you have a .308 AR sized one.

The ejection issue is secondary to it not going into battery. I'd field strip it completely, clean it and look for abnormal wear on the inside of the receiver cam pin area. Also check gas tube alignment to the gas key. Then lube it with something like G96 (WET) and try cycling it by hand. Once you fix it going into battery, then worry about the ejecting properly.

 

[Mixter]

I’m not exactly sure what to be looking for...anyone have pics of what the parts should look like...how do I know if it’s a ar15 bolt catch or 308?

 

[cr5]

Not sure what the cam pin is? Also would that be responsible for being able to tap the stock and the bolt slamming shut? It doesn’t take much

The cam pin is what you put into the bolt carrier to lock the bolt into the carrier and what causes the bolt to rotate as it comes into battery.
If you don't know this stuff you are going to have a very hard time troubleshooting problems with your rifle. I strongly suggest you spend a few hours on the internet researching the AR platform, how it works, how to disassemble it, and how to lubricate it.
And don't just start another thread asking these questions, the information is all there if you just take the time to look for it yourself.

Most of what you need can be found here. AR-15 and AR-10 are close enough that the disassembly and lubrication instructions can be used interchangeably.
https://www.canadiangunnutz.com/forum/showthread.php/523308-AR15-Lubrication-and-cleaning-thread

The bolt releasing when you bump the stock is not uncommon, the magazine follower pushes up on the bolt catch when it's empty which pushes the catch up into the way of the bolt trapping it to the rear. The bolt catch is spring loaded to release the bolt so once the magazine is removed there is nothing holding it in the catch position other than the pressure put on it from the bolt carrier being pushed forward by the buffer spring. When you bump the stock the carrier has enough inertia that it continues to move rear a little which releases the pressure on the bolt catch allowing it to drop out of the way and the buffer spring pushes the bolt carrier group (BCG) forward.


You really should take more interest in learning about your firearms and how they work.
Without any knowledge you are putting yourself and those around you in danger whenever you use your rifle. How will you know when there is something wrong with your rifle that is serious enough that you should stop shooting it? When you buy the cheapest pos (sorry, no offense) 308 semi black rifle on the market that is made by a company known for making out of spec and poorly finished products you really should make sure you know more about your rifle than how to load it and which end the bullets come out of.

I'm not trying to be mean, and I'm not trying to hack on BCL (this time anyway), this is about safety and being a responsible firearms owner capable of maintaining your rifles in a safe and reliable condition.

 

[Mixter]

The cam pin is what you put into the bolt carrier to lock the bolt into the carrier and what causes the bolt to rotate as it comes into battery.
If you don't know this stuff you are going to have a very hard time troubleshooting problems with your rifle. I strongly suggest you spend a few hours on the internet researching the AR platform, how it works, how to disassemble it, and how to lubricate it.
And don't just start another thread asking these questions, the information is all there if you just take the time to look for it yourself.

Most of what you need can be found here. AR-15 and AR-10 are close enough that the disassembly and lubrication instructions can be used interchangeably.
https://www.canadiangunnutz.com/forum/showthread.php/523308-AR15-Lubrication-and-cleaning-thread

The bolt releasing when you bump the stock is not uncommon, the magazine follower pushes up on the bolt catch when it's empty which pushes the catch up into the way of the bolt trapping it to the rear. The bolt catch is spring loaded to release the bolt so once the magazine is removed there is nothing holding it in the catch position other than the pressure put on it from the bolt carrier being pushed forward by the buffer spring. When you bump the stock the carrier has enough inertia that it continues to move rear a little which releases the pressure on the bolt catch allowing it to drop out of the way and the buffer spring pushes the bolt carrier group (BCG) forward.


You really should take more interest in learning about your firearms and how they work.
Without any knowledge you are putting yourself and those around you in danger whenever you use your rifle. How will you know when there is something wrong with your rifle that is serious enough that you should stop shooting it? When you buy the cheapest pos (sorry, no offense) 308 semi black rifle on the market that is made by a company known for making out of spec and poorly finished products you really should make sure you know more about your rifle than how to load it and which end the bullets come out of.

I'm not trying to be mean, and I'm not trying to hack on BCL (this time anyway), this is about safety and being a responsible firearms owner capable of maintaining your rifles in a safe and reliable condition.

First off thanks for the technical info that helps a lot. But seriously bro get off of your soapbox as you are making alt of assumptions here...I am taking the time to learn about my rifle and definitely do not keopardoze anyone’s safety (bit of a stretch) but being new to this platform and with the ####ty bcl manual it’s normal not to have all the answers...this is how one learns.
You make a lot of assumptions that I haven’t researched and learned about the model that I have. All because I don’t know what a cam pin is or if the bolt slamming closed from tapping the stock is normal?
I ought what was on the market at the time, and yes it was my first AR so....naturally it takes time to learn about the inner workings. Plus these aren’t exactly carbon copies of ar10s considering all of the proprietary parts etc...

Again thank you very much for the help and info but the lecture was a tad unnecessary....have a good weekend!

 

[cr5]

First off thanks for the technical info that helps a lot. But seriously bro get off of your soapbox as you are making alt of assumptions here...I am taking the time to learn about my rifle and definitely do not keopardoze anyone’s safety (bit of a stretch) but being new to this platform and with the ####ty bcl manual it’s normal not to have all the answers...this is how one learns.
You make a lot of assumptions that I haven’t researched and learned about the model that I have. All because I don’t know what a cam pin is or if the bolt slamming closed from tapping the stock is normal?
I ought what was on the market at the time, and yes it was my first AR so....naturally it takes time to learn about the inner workings. Plus these aren’t exactly carbon copies of ar10s considering all of the proprietary parts etc...

Again thank you very much for the help and info but the lecture was a tad unnecessary....have a good weekend!

Good thing my assumptions were wrong.

Send your gun back for warranty repair.

Ryan will help you get a warranty claim started
https://theammosource.com/contact-us/

Bit of a stretch?
You have an explosion creating 60,000psi of pressure going off 3 inches from your face, it sounds like you have an issue with the cam pin or cam pin track which is what is responsible for rotating the bolt so the locking lugs engage the receiver extension lugs, and you don't know what a cam pin is.
Are my concerns for your safety and those around you really just me preaching on my soap box?

This is what can happen when things go wrong with AR's.
Where would your face have been when this happened?

Random image stolen from a google search.

 

[Garaldtao]

I am experencing the exact same thing as your 2nd issue. Fortunate for me, it appears to be a magazine issue. I have bought several magazines of the same brand and make but from different stores. Although they look identical to each other I know they are from different batches because they are each from a different retailer. I would buy a part or another gun and alway throw a magazine in the check out cart to either make the free delivery cut off or the mag is on special. I marked each mag and low and behold, half of the mags is experencing the 2nd issue you are discribing. The other half performs flawlessly even with continuous mag dumps. Good thing some of the ROs are good friends of mine because rapid fire is discouraged at our club.lol Hope this helps.

 

[Mixter]

Good thing my assumptions were wrong.

Send your gun back for warranty repair.

Ryan will help you get a warranty claim started
https://theammosource.com/contact-us/

Bit of a stretch?
You have an explosion creating 60,000psi of pressure going off 3 inches from your face, it sounds like you have an issue with the cam pin or cam pin track which is what is responsible for rotating the bolt so the locking lugs engage the receiver extension lugs, and you don't know what a cam pin is.
Are my concerns for your safety and those around you really just me preaching on my soap box?

This is what can happen when things go wrong with AR's.
Where would your face have been when this happened?
View attachment 256055
Random image stolen from a google search.

No harm no foul my friend...so I field stripped it, cleaned it and checked out the “cam pin” and the rest of the bcg. I didn’t see any unusual wear marks Or poor machining. I did the gas ring test and it passed.
It was pretty dry so I lube it up according to that link cr5 posted. . Made sure the cam pin area was wet. Grabbed the same mags that I had at the range and BOOM she cycles like a champ and hits home into battery every time!
Thanks all for your time and patience! So glad I don’t need to send it back!