PSA microbest bcg.

I have one oiled up in a bag that stays in my range bag as a spare but probably not needed.
The one I run the most has a Sionics NP3 BCG.
Ocks hardware and a 5 coil extractor spring no O-ring standard.
My other has a Radian BCG with nitride, installed a 5 coil extractor spring and ditched the 0-ring.
 
powermad said:
I have one oiled up in a bag that stays in my range bag as a spare but probably not needed.
The one I run the most has a Sionics NP3 BCG.
Ocks hardware and a 5 coil extractor spring no O-ring standard.
My other has a Radian BCG with nitride, installed a 5 coil extractor spring and ditched the 0-ring.
Click to expand...
Is it hard chromed in the key and carrier?
 
hk45shootist said:
BCM is likely made by Microbest, AO Performance, or Toolcraft (carrier only) - they (BCM) don't make any BCG. You pay for the logo and some extra QC.
Those are the big three BCG makers, with AO being a major provider for the US Army.
Click to expand...
Good to know.
 
No chrome.
NP3 on everything but the extractor on the Sionics.
Pretty sure the Radian is just nitride.

Only CL one that I have is the phosphate one.
A new Toolcraft nitride I have doesn't.
 
I don't know man, I ran geissele BCG forever and never had an issue, on the same token I have radical, palmetto, aero BCG that had never given me any issues.

Like all mechanical parts, preventive maintenance is a must and just have one or two BCG as spares per rifle just in case.

You have a spare tire in your car, spares magazine for your firearms, a spare bcg for ARs is a good idea.
 
JP Rifles full mass BCG. Hands down superior, but you pay for it too.

Second best I've found was NB Toolcraft.

I've never had a problem with any PSA BCG..but I suspect they are just rebranded Toolcraft.

Ballistic Advantage NB BCG I bought was almost complete crap. So stiff it wouldn't even pass the flict test. I had to break out the dremel and polish to make it function...and even then, it runs much dirtier than any other BCG I have. It's strange..but none the less...
 
I have a microbest in my home defense gun and tool craft or BCA (whoever makes them for bca I should say) in my other 10 AR’s. As for the video above of breaking the bolts after 5000-7000 rounds, that is concerning but you should really be replacing bolts at around that round count anyway and probably your barrel when your done with the 2nd bolt. If you are putting that kind of rounds training through a gun I think you would be well advised to have a 2nd BCG to use for training and then put your other one back in when your done, or just build a training rifle. If you can afford the ammo you can afford 2 rifles.
 
someguy2800 said:
As for the video above of breaking the bolts after 5000-7000 rounds, that is concerning but you should really be replacing bolts at around that round count anyway
Click to expand...

There is a thread over at ARF on just this subject. It was posted by (perhaps) the owner of Battlefield Las Vegas, a rental gun range there. Their rental AR's get thousands of rounds pumped through them...( I know I've put a few through them meself... ;) ) and they keep track of each rifle's maintenance. It's been a while since I read through it, but the big revelation to me was the fact that... hold the phone... parts break on AR's. When you think of weapons, with all that exploding going on in there, you think... how can this wear out? This thing is built to handle it, right? Well, weapons are just like any other tool, use it enough and things break. That idea lit my rather dim bulb in my head about maintenance and parts failures... and then it happened to a friend of mine when we were out of town on a shoot... his AR sheared 3 bolt lugs, deadlining the weapon.

I just got my 2 Toolcraft NiB BCG's in the mail yesterday... and they are going right into service. I did take note of the review in post #3... and I'll be keeping an eye on my parts, for sure. I will say, since my buddy sheared those lugs... I have a BCG in the range toolbox, now. Magpul also makes a 'spare bolt' insert for their grips... and I'm contemplating one of those as well.
 
Charlie98 said:
There is a thread over at ARF on just this subject. It was posted by (perhaps) the owner of Battlefield Las Vegas, a rental gun range there. Their rental AR's get thousands of rounds pumped through them...( I know I've put a few through them meself... ;) ) and they keep track of each rifle's maintenance. It's been a while since I read through it, but the big revelation to me was the fact that... hold the phone... parts break on AR's. When you think of weapons, with all that exploding going on in there, you think... how can this wear out? This thing is built to handle it, right? Well, weapons are just like any other tool, use it enough and things break. That idea lit my rather dim bulb in my head about maintenance and parts failures... and then it happened to a friend of mine when we were out of town on a shoot... his AR sheared 3 bolt lugs, deadlining the weapon.

I just got my 2 Toolcraft NiB BCG's in the mail yesterday... and they are going right into service. I did take note of the review in post #3... and I'll be keeping an eye on my parts, for sure. I will say, since my buddy sheared those lugs... I have a BCG in the range toolbox, now. Magpul also makes a 'spare bolt' insert for their grips... and I'm contemplating one of those as well.
Click to expand...

Yeah I remember reading that awhile back
 
js8588 said:
That PSA was likely a Toolcraft

Microbests are quality. I prefer their chrome BCGs, myself.
Click to expand...

Meh. He ran 7k rounds through that bolt, rifle and barrel..before the bolt failed. I don't think that so bad. Things WILL break. Nothing last forever. He says he got almost the same from the second bolt. The barrel was likely shot 3 or 4k rounds before that..especially seeing how they ran it super hot.

I doubt most issue service rifles ever see that many rounds..and if they do, they already went through depot a few times.

Im not condemning Tool craft for this.

Hell..even my extreme high dollar JPRifle BCG told me to change the bolt...a bolt made out of material even better than Captenter 158...at 5k rounds.

The vast majority of shooters on this forum...and even more out in general public...will NEVER run enough rounds to break even a cheap junk bolt.

Me thinks it's over reaction.
 
Here is my take on things.

As stated, there are only a few US manufacturers that actually make bolts and bolt carrier groups. AS long as they are made to specs and have been properly checked then they should be good to go. I have ran plenty of PSA BCG's without any issues. And the ones that aren't PSA Brande are from Toolcraft, again no issues.

I went through basic training, two AIT's and was permanent party at Fort Leonardwood in 1989 and 1990. We were still using the M16A1 for training units. The A1's used by the basic training companies definitely had high round counts. Rifles were always inspected on a regular basis by the unit armorers and having to replace the BCG or bolt wasn't all that common.
 
The Army estimates a bolt life between 12,000 - 15,000 rounds.

As noted 7,000 rounds is a lot of ammo for most people.
Even if you reload, it's still a lot of commitment to shoot that much.
 
Gas system, suppressed/unsuppressed plays a big role on how long BCG's will last.

A 20" M16 with a 12" gas port distance from chamber as compared to a 10.5" carbine gas 7" to port from chamber running suppressed is going to have a different trajectory all together on parts wear.
 
BreechFace said:
Gas system, suppressed/unsuppressed plays a big role on how long BCG's will last.

A 20" M16 with a 12" gas port distance from chamber as compared to a 10.5" carbine gas 7" to port from chamber running suppressed is going to have a different trajectory all together on parts wear.
Click to expand...
Ya..I agree with this.

Pistol vs Carbine vs Rifle length gas systems each, I'm sure has different effects.

Personally, If you gave a 16 inch or longer barrel..I've always wondered what the attraction was with have midlegnth or carbine length..rather than the normal rifle length.
I always go with rifle on my builds.
Never saw any advantage with the shorter length...but then I don't build short rifles either.
 
Crane Navel did that evaluation between carbine and mid gas systems.
Mid gas was more reliable and lasted longer.

I have an 18" with rifle gas and rifle action (A5).
My 14.7" is a mid gas with rifle action (A5).

Worlds better than the 16" carbine gas PSA I started with.
 
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