Questions .308 BCG’s

[NTXTRD]

Hello.

 

May I ask a question regards BCG’s. 
 

Currently I have a .308 utilizing a Stag Arms frame set and have a 

stag BCG in it. Don’t know how reliable they are so I was thinking of replacing

the bolt. Will a toolcraft carrier work in a stag frame? What’s your take on 

Reliable bolts for .308 ? Brand? I was told dual ejectors are not needed

for 308. What’s your take? 
 

I did look for a thread on this but didn’t find one.

 

tia

[shooterrex]

Tool Craft is good. I have not seen a Stag Arms rifle that wasn't good to go out of the box. Sold quite a few when I worked in the gun shop. Buddy and his son both have Stag 308's that run like a well oiled sewing machines. My opinion you are worrying about nothing.

[98Z5V]

On 2/27/2025 at 4:26 PM, NTXTRD said:

Hello.

 

May I ask a question regards BCG’s. 
 

Currently I have a .308 utilizing a Stag Arms frame set and have a 

stag BCG in it. Don’t know how reliable they are so I was thinking of replacing

the bolt. Will a toolcraft carrier work in a stag frame? What’s your take on 

Reliable bolts for .308 ? Brand? I was told dual ejectors are not needed

for 308. What’s your take? 
 

I did look for a thread on this but didn’t find one.

 

tia

Aero Precision manufactures all the Stag-10 receivers and rails.  For Stag Arms.  If you have  Stag 10 BCG in there - you have an Aero Precision BCG in there.  It's as simple as that.

Aero Precision used to use ToolCraft for all their BCGs, but they moved all their BCG production in-house - and the AP BCGs don't suck.  They are legit.

If you swap your Stag 10 BCG for an AP BCG - you just bought the exact same part.  If you swap it for a ToolCraft BCG - you just bought another part that works identical to the part you replaced.

Hope that makes sense.  Hope that helps.

Don't ditch your BCG that you have.  You haven't even shot the rifle yet.

FWIW - My opinion only - the Stag-10 receiver sets and rails, manufactured by Aero Precision, FOR Stag Arms - hose receiver sets are far superior to AP M5 receiver sets and rails.  What Aero does for Stag Arms on this is WAY more than what Aero is even doing for their own M5 stuff.

The Stag-10 parts are superior to Aero M5 parts.  I own alot of both. 

[98Z5V]

On 2/27/2025 at 4:26 PM, NTXTRD said:

Hello.

 

May I ask a question regards BCG’s. 
 

Currently I have a .308 utilizing a Stag Arms frame set and have a 

stag BCG in it. Don’t know how reliable they are so I

 

 

Go make an Intro Post in the Introduction Section - I just freely handed you more FREE information, than I've ever given to anyone with one post.

Here's the link to the section - payback time is due, so tell me about yourself.  Nothing is free... 

Rip it up.

https://forum.308ar.com/forum/22-introductions/

Edited Saturday at 03:50 AM by 98Z5V

[NTXTRD]

On 2/28/2025 at 6:35 AM, shooterrex said:

Tool Craft is good. I have not seen a Stag Arms rifle that wasn't good to go out of the box. Sold quite a few when I worked in the gun shop. Buddy and his son both have Stag 308's that run like a well oiled sewing machines. My opinion you are worrying about nothing.

I’m looking at accuracy, reliability. 
 

Barrel has been broke in (Noveske 16”RG), sited,
using off the shelf 150gr ammo. It shot 2 moa at 100yds.

So I’m thinking of using a JP bolt on a toolcraft carrier.

This gun is a build that was done using stag frame set, rail,

noveske barrel, ssa-e. So the bolt as well as better ammo. Thinking 

168 smk.

 

 

[unforgiven]

Tool craft carrier and bolt are the best. Just my 2 mags, JP parts are more race gun parts. 

[NTXTRD]

13 hours ago, 98Z5V said:

Aero Precision manufactures all the Stag-10 receivers and rails.  For Stag Arms.  If you have  Stag 10 BCG in there - you have an Aero Precision BCG in there.  It's as simple as that.

Aero Precision used to use ToolCraft for all their BCGs, but they moved all their BCG production in-house - and the AP BCGs don't suck.  They are legit.

If you swap your Stag 10 BCG for an AP BCG - you just bought the exact same part.  If you swap it for a ToolCraft BCG - you just bought another part that works identical to the part you replaced.

Hope that makes sense.  Hope that helps.

Don't ditch your BCG that you have.  You haven't even shot the rifle yet.

FWIW - My opinion only - the Stag-10 receiver sets and rails, manufactured by Aero Precision, FOR Stag Arms - hose receiver sets are far superior to AP M5 receiver sets and rails.  What Aero does for Stag Arms on this is WAY more than what Aero is even doing for their own M5 stuff.

The Stag-10 parts are superior to Aero M5 parts.  I own alot of both. 

Thanks. 
 

I bought the stag frame set/rail and found one of their BCG’s. I took 

one of my .308’s (have three, two were nearly identical) and donated

it’s barrel to the stag build. That barrel was only test fired. 
The barrel has now been broke in using off shelf ammo, it shot

2moa. It’s now tuned non-suppressed and cycles without hiccup. However I decided to change gb

to a rifle speed since it’s gonna be suppressed. Never used rifle speed before.

It has a superlative now. 

[NTXTRD]

14 minutes ago, unforgiven said:

Tool craft carrier and bolt are the best. Just my 2 mags, JP parts are more race gun parts. 

K. Thanks. I have Aero, toolcraft BCG’s and a couple rubber city bolts. 
I’ll use the stag BCG until I get it back out with better ammo. 

[Rsquared]

Noveske makes outstanding barrels. They cost a little more, but they're nothing but quality. They're what I've used for most of my builds.

With better ammo, you'll be able to tighten that group up. 

But out of the box, 2 MOA will still drop a target. 

[NTXTRD]

By the way, one thing that triggered my question is 

the way carriers are cut and the different cuts of the large frame

receivers i.e. dpms, Armalite mainly. When I was getting spare bcg

parts I found differences in firing pins, carrier cuts. 

[shooterrex]

If you go with 168 gr or 175 gr match ammo your groups should shrink.

[98Z5V]

2 hours ago, NTXTRD said:

By the way, one thing that triggered my question is 

the way carriers are cut and the different cuts of the large frame

receivers i.e. dpms, Armalite mainly. When I was getting spare bcg

parts I found differences in firing pins, carrier cuts. 

DPMS-based and Armalite AR-10-based BCGs only differ internally, and only in the firing pin and spring.  The Armalite AR-10 firing pin has an additional shoulder on it because they spring it.  DPMS-based BCGs use traditional AR-15-type firing pins (dimensionally longer), and no firing pin spring.

Externally, the BCGs are identical in size and function. 

I intentionally built a DPMS-based large frame gun - all Aero M5 receivers - and I used 100% Armalite AR-10 guts, just to prove this point.  Armalite AR-10 barrel, BCG, and recoil system, running in Aero M5 receivers.  It runs like a sewing machine. 

[NTXTRD]

7 hours ago, Rsquared said:

Noveske makes outstanding barrels. They cost a little more, but they're nothing but quality. They're what I've used for most of my builds.

With better ammo, you'll be able to tighten that group up. 

But out of the box, 2 MOA will still drop a target. 

Thanks. I have two .308’s and a 6.5cm barreled

with Noveske. Back when I decided I wanted large frame I read a lot

on the other forum and decided I wanted 16” barrel, rifle gas. 
At that time the only two companies I found that made those was 

Criterion and Noveske. I’m hoping the groups do tighten up. The .308’s

are mid range intended but I’m taking them to a 1000 yd range this spring

 

 

 

[MtnMike]

I have 2 16" AR 308s w/16" barrels.  Same 1:10 barrel twist rates.  One is a Daniel Defense.  The other is a Wyndham Weaponry (great manufacturer - but they're out of business now). Tried a lot of different ammos in each.  I use both for hunting. The DD does best with heavier ammo. For that one, 178g Hornady ELD-x is the best ammo.  The WW does best with 150g ammo.  Usually just feed it plain old Federal Power Shok.  Both are sub 1 MOA with ammo they like.  But my primary point is to try different ammos with your guns.  Based on my experience, seemingly similar guns can perform quite differently with different ammos. If I shoot "the higher quality" 178g in the WW, it goes to 1.5+ MOA.  BTW - both use BCGs with dual ejectors.  Never had an issue with either - at all.  Happy shooting!