M&P Twist

[vtrwillie]

Is the standard barrel twist on the MP15 sport II 1:8?

 

[Westie1]

1:9. Original Sport had 1:8

 

[Moe Mentum]

1:9 is the twist rate for Sport II

 

[hdwhit]

1:9 It is sort of a "grand compromise" twist rate; fast enough to stabilize heavier bullets without being so fast as to tear lighter bullets apart halfway down-range.

 

[blkM&P-15T]

The M&P-15T has a 1:8 twist.

 

[cyphertext]

1:9 It is sort of a "grand compromise" twist rate; fast enough to stabilize heavier bullets without being so fast as to tear lighter bullets apart halfway down-range.

Not really... 1:8 is considered to be the compromise... between the 1:7 mil-spec and 1:9 used in many commercial rifles. For most shooters, it really doesn't make any difference.