Surefire ICAR

LRRPF52 · Feb 1, 2025

I wonder who will be next or is already in the process of adopting the new receivers and Magpul ICAR PMAG compatibility?

LWRCi is already poised to produce firearms with a simple barrel/bolt install with their existing Six8 receivers, but I would really like to see them use their new semi-monolithic upper.

ADM would be nice with their ambi lower and funnel mag well.

Noveske would be a great place to see a 338 ARC in the form of their Ghetto Blaster.

Shoreglide · Feb 1, 2025

I’d probably be all over a semi monolithic receiver that takes the new ICAR Pmags. Currently waiting to see what actually comes to market over the next few months.

Spd37 · Feb 1, 2025

I want thicker bolt lugs that’ll handle bolt gun pressures

rlsmith1 · Feb 1, 2025

Spd37 said:
I want thicker bolt lugs that’ll handle bolt gun pressures

Agreed, otherwise this is pointless to me. I’m not taking my 6 ARC to war so a potential broken bolt isn’t the end of the world and a non standard AR isn’t very exciting if it can’t increase performance but I’m not holding my breath.

Only solution I see is something like 223 and 556 distinction for basically the same thing

Spd37 · Feb 1, 2025

rlsmith1 said:
Agreed, otherwise this is pointless to me. I’m not taking my 6 ARC to war so a potential broken bolt isn’t the end of the world and a non standard AR isn’t very exciting if it can’t increase performance but I’m not holding my breath.

Only solution I see is something like 223 and 556 distinction for basically the same thing

It’s weird PSA made this larger 6arc and different bolt when all they had to do was make that set what 40-60 thousand larger? I don’t get it

LRRPF52 · Feb 2, 2025

Spd37 said:
I want thicker bolt lugs that’ll handle bolt gun pressures

Just for reference, when Remington did the 30 RAR, which had an AR-10 diameter bolt head with AR-10 cross section lugs, with a corresponding AR-10 diameter barrel extension, they limited the SAAMI MAP to 55,000psi.

The bolt lug lengths were still AR-15 length, as were the tooth lengths in the barrel extension.

Spd37 · Feb 4, 2025

LRRPF52 said:
Just for reference, when Remington did the 30 RAR, which had an AR-10 diameter bolt head with AR-10 cross section lugs, with a corresponding AR-10 diameter barrel extension, they limited the SAAMI MAP to 55,000psi.

The bolt lug lengths were still AR-15 length, as were the tooth lengths in the barrel extension.

I guess what I really mean is the aera between the case head and od needs to be thicker

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