Modern Sporter Update April 5th 2018

[griffin86]

Speaking of forward assists - don't care whether it has one or not. The first produced will be the first on my list.
I read somewhere that if the round doesn't want to go into the chamber if you pull the charging handle back and let it go home, it shouldn't be forced in with a forward assist anyway.

Correct, but that's not what we use it for.

[Kratos]

If one day this finally has a NR ruling, would I be able to build a super short(~7” barrel) dedicated 22LR version and call it NR? Making sure the OAL is 26”+

You’ll need around an 11” barrel, but yes. Has to be a manufactured 22LR barrel as well, not 223 converted. I’ll be making one.

[PinaKaleada]

You’ll need around an 11” barrel, but yes. Has to be a manufactured 22LR barrel as well, not 223 converted. I’ll be making one.

I’m thinking logistically, how would one prove that it’s a 22LR only? Cuz when you pull out the conversion kit, which is just the BCG, it can probably fire a 223 round just fine.

[onetwentyish]

I’m thinking logistically, how would one prove that it’s a 22LR only? Cuz when you pull out the conversion kit, which is just the BCG, it can probably fire a 223 round just fine.

It cant be a kit that is just the BCG. It has to be a dedicated .22lr barrel as well as BCG.

[Kratos]

It cant be a kit that is just the BCG. It has to be a dedicated .22lr barrel as well as BCG.

Exactly, my barrel is stamped 22LR from the factory and has a matching bolt.

[onetwentyish]

Exactly, my barrel is stamped 22LR from the factory and has a matching bolt.

Where have you bought this kit? I need one!

[PinaKaleada]

Exactly, my barrel is stamped 22LR from the factory and has a matching bolt.

I did not know such thing existed. Thanks for the info.

[griffin86]

I did not know such thing existed. Thanks for the info.

CMMG has one and someone else.

[Kratos]

CMMG has one and someone else.

CMMG does have them but I don’t know about the barrels in those kits. The kit has a collar adapter for the bolt so is it adapting a regular M4 collar? The bolt looks to be the same as the conversion kit bolts. Not saying it isn’t legal, but I’d do some research into it before the RCMP were to ask when in the field.

My kit is from a Spikes ST-22 upper, out of production I think but gunbroker still has the 16” versions (not cheap). Haven’t seen another 11” version like mine anywhere. The barrel has the 22LR collar built in (no barrel extension) so you can’t run 223 in it.

[griffin86]

CMMG does have them but I don’t know about the barrels in those kits. The kit has a collar adapter for the bolt so is it adapting a regular M4 collar? The bolt looks to be the same as the conversion kit bolts. Not saying it isn’t legal, but I’d do some research into it before the RCMP were to ask when in the field.

My kit is from a Spikes ST-22 upper, out of production I think but gunbroker still has the 16” versions (not cheap). Haven’t seen another 11” version like mine anywhere. The barrel has the 22LR collar built in (no barrel extension) so you can’t run 223 in it.

The CMMG looks like it should fit.

Installs on a mil-spec upper receiver using a standard or free-float barrel nut.