Educate me please....question about SBR and BCG.

[Iraqgunz]

I don't believe the bolt does. I believe it was a fluke. In any case I believe that if you simply put an H3 in and a Springco spring you will be good to go.

Of you can install an A5.

So why does the bolt affect function? The carrier works perfect with a different bolt.

[munch520]

So why does the bolt affect function? The carrier works perfect with a different bolt.

No idea, I thought the enhanced bolts only differences were pertaining to the improved extractor. Looks like an e3 bolt to me...

credit to MilitaryMorons:

[MovinMan]

I don't believe the bolt does. I believe it was a fluke. In any case I believe that if you simply put an H3 in and a Springco spring you will be good to go.

Of you can install an A5.

OK, thanks for the info guys.

Looks like an H3 and new spring are in order. Ill get them ordered today and report back when I test them out.

[C4IGrant]

The enhanced carrier was designed for 14.5"-16" carbine gas barrels.

I think this has more to do with the bolt than the carrier. The carrier is designed to help 14.5" and BELOW guns.

The enhanced bolt needs to be used with 14.5" and ABOVE lengths.


I have been running an enhanced carrier in my 10.5 forever.

To the OP, get rid of the enhanced bolt for your SBR.




C4

[NoveskeFan]

HIJACK: I am currently building my SBR...the lower anyway. Going with a Noveske 10.5" MK18 upper. Is it pretty common to need the heavier buffer and spring?

[MovinMan]

OK, help me understand this real quick.

An H3 buffer is the heaviest right? So wouldnt a heavier buffer cause it to short stroke...... exacerbating the problem? Or does a heavy buffer add to reciprocating mass and allow the bolt to travel further back against the buffer spring?


Anyways, heres a crappy cell phone pic of the culprit.

[MovinMan]

I think this has more to do with the bolt than the carrier. The carrier is designed to help 14.5" and BELOW guns.

The enhanced bolt needs to be used with 14.5" and ABOVE lengths.


I have been running an enhanced carrier in my 10.5 forever.

To the OP, get rid of the enhanced bolt for your SBR.




C4

Weren't you the gent that had that big long thread about suppressed SBR's? I figured you'd have some experience with it.

[Iraqgunz]

I believe that if you read that thread, Grant used only the carrier and not the bolt. I may be wrong.

In any case I have made my recommendation. It's up to you to drink the water or look for another well.

Weren't you the gent that had that big long thread about suppressed SBR's? I figured you'd have some experience with it.

[C4IGrant]

Weren't you the gent that had that big long thread about suppressed SBR's? I figured you'd have some experience with it.

Yep.



C4

[MovinMan]

I believe that if you read that thread, Grant used only the carrier and not the bolt. I may be wrong.

In any case I have made my recommendation. It's up to you to drink the water or look for another well.

No, I gocha....I appreciate the input. Im just trying to understand the mechanical function of it a bit better.

It would seem to me a heavier buffer would make it short stroke no?