BCG Recommendations

[1911RONIN]

Forward Controls Design NP3 BCG. Or Sionics NP3 BCG. LMT. Geissele Nano coated.


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[solidfreshdope]

I use Daniel defense but I have a nice nickel boron coated aero BCG that works well


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[AlHO1966]

Faxon, BCM, ToolCraft in that order but that’s mostly cause I always use faxon barrels.

[vintagearms]

Don't overthink it. BCM or Colt. 100% milspec. Done.

Add Fulton Armory to that list. They use the same metallurgy, and testing as Colt does.

[Jimi Jah]

I prefer a lightweight nitride carrier with an adjustable gas block or gas key. No need to carry that extra weight around unless you go full auto, something I don't need to be concerned about here.

$39 RTB nickel-Teflon triggers replaced the ALG's. Add a Joe Bob's $10 trigger adjuster and they are top-notch. Slip 2000 EWL 30 wt keeps it well lubed and that stuff won't burn or run off.

[PachecoFTW]

Centurion arms c4 bcg its like 120
Faxon probably the best, tool steel extractor
I wouldnt spend less than 100.
I can reccomend what my cousin and I did for our latest build; adams arms carrier 60$ its DLC over a nickle base, and buy a stag arms bolt from another retailer. The stag bolt is 158C with a tool steel extractor, we paid 35$ each and got like 3 each. All other small parts we get from damage industries.

[SISKIN]

Answer is D all the above..Depends on how much you want to spend . I have a toolcraft,Aero,Psa.Faxon...etc..some are Nitride some are Nickel boron. In my go to AR Pistol i run a Aero nickel boron BCG with a Sharps Relia-A-Bolt."note:One of the lugs did break on the bolt, and i do keep a spare in the grip so i did not loose any range time. Called Sharps and the sent me a new one...

[DrjonesUSA]

Toolcraft, they are OEM for many companies and supply parts for the military as well. They don't cost an arm and leg as well.

This.

I've read over & over & over (I think also on many vendors websites) that Toolcraft is OEM for a looooot of brands.

i.e.; when you think you are buying BCM or DD, you might well actually be (probably are) buying Toolcraft. Its hard to keep track of exactly who manufactures what these days so I'm not necessarily saying BCM & DD in particular don't make their own BCG's, but it seems to be very widely accepted that Toolcraft is OEM and 100% GTG.

If I was in the market for a BCG, I'd get a NiB Toolcraft from wherever I could find the best price.

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[Tere_Hanges]

Toolcraft are good but out of stock most places and prices went up $40 on them.

PSA has a nitride BCG in stock for $73 that looks exactly like the Toolcraft, I think it probably is.

https://palmettostatearmory.com/psa-5-56-nitride-mpi-full-auto-bolt-carrier-group-516446953.html

I like old school milspec chrome lined BCGs so I got one recently from JSE for $95, shipping was $4.

http://www.jsesurplus.com/milspecboltandcarrierassy.aspx

Geissele BCG is $140

https://www.primaryarms.com/geissele-automatics-m4a1-bolt-carrier-group

[Jimi Jah]

I've found my nitride carriers much easier to clean and the rails stay treated. They slide easier. The parked carriers all have the park rubbed off the rails, raw steel is not good for sliding and it no longer holds the lube.

Same with bolts.

[DrjonesUSA]

I've found my nitride carriers much easier to clean and the rails stay treated. They slide easier. The parked carriers all have the park rubbed off the rails, raw steel is not good for sliding and it no longer holds the lube.

Same with bolts.

What about NiB?

[BigPimping]

A few years ago when I first acquired my factory-built AR pistol, It had a great deal of difficulty cycling. I called the person here who I purchased it from who was a retailer. He suggested it might be the bolt carrier group and we swapped it out with a stainless one. No problems ever again. I forget the brand name but the stainless bolt carrier group was awesome.

[MarikinaMan]

Barrel is the heart of the rifle, not the BCG. What kind of barrel did you get? Length? Twist? Stainless steel or carbon steel? If not SS, is it chrome lined?
Is this going to be a precision shooting build? Range plinker? Home defense?

IMO, any toolcraft BCG will be great and inexpensive. I would get NIB coating for ease of cleaning.

The"best" BCG's in my opinion are JP Enterprises with their high pressure bolt. Only worth it for a serious precision build or if you're shooting 3gun etc I feel.

Actually, the bolt is a part where a factory built rifle can bring some advantages. There are manufacturers who will hand match a bolt to the barrel to get the headspace to their company specs. Most will settle for go and no go, some will go the extra mile to spec out their tolerances.

Does it matter for minute of man, no.

[Tere_Hanges]

What about NiB?

Same as Nitride just more expensive because it costs more to produce.

I probably should have bought one of PSA's nitride BCGs for $73, since they are sending them out with "upgraded" 158 bolts due to parts shortages. But I didnt want to worry about slow shipping.

[vintagearms]

I prefer a lightweight nitride carrier with an adjustable gas block or gas key. No need to carry that extra weight around unless you go full auto, something I don't need to be concerned about here.

For moderate temperatures it will work fine. You may start to have issues in extreme heat or cold running a lw carrier, even with the adj gas.