BCM MK2 Recoil Mitigation System

[georgeib]

Does anyone know the rate difference between the Sprinco Green and the rifle spring that comes with the Vltor kit? It does feel a bit heavier when pulling the charging handle.

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[RHINOWSO]

No but I agree the Sprinco Green is heavier than the VLTOR provided spring.

[SteveL]

In what way do you propose that they could not?

They use the same receiver extension, the same spring, and are designed by the same guy.

I don't see any reason they wouldn't be, but maybe there's something about them I'm unaware of. I'm just asking for verification before I spend any money.

[titsonritz]

I'm 98.9% certain the BCM MK2 Recoil Mitigation System is the VLTOR A5 system with a different name.

[SteveL]

I'm 98.9% certain the BCM MK2 Recoil Mitigation System is the VLTOR A5 system with a different name.

I'm inclined to agree.

[Wake27]

Well the buffer weights are different.


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[titsonritz]

Well the buffer weights are different.


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For reference between the two.

VLTOR...
A5H0: 3.80oz
A5H1: 4.56oz
A5H2: 5.33oz
A5H3: 6.08oz
A5H4: 6.83oz

BCM...
MK2 Mod 1 - T0: ~3.8oz
MK2 Mod 1 - T1: ~4.7oz
MK2 Mod 1 - T2: ~5.6oz
MK2 Mod 1 - T3: ~6.5oz
MK2 Mod 1 - T4: ~7.4oz

[titsonritz]

The slight weight & color and...

Internal spring to reduce noise of counter weight shifting and ensure more consistent weight placement Corrected below, it does have an internal spring

...seem to be the differences.

[Todd.K]

The A5 also has an internal spring.

[titsonritz]

The A5 also has an internal spring.

Didn't know that, thanks for the correction.