Originally Posted by
Paul Cataldo
It's not that shocking at all really. For one, it's OLD news, and tests like that have been done since WAY back.
And secondly, it's fairly common knowledge that these two piston guns (the SCAR and 416) will CERTAINLY outlast a regular Direct Impingement system!
The only thing any M4 owner needs to do, to make their DI M4 run reliably longer, is KEEP IT LUBED! (which the Army trials did not do during the firing, as their test was to remain fair, and keep things equal)
OF course the piston guns run longer! They don't blow carbon gases back into the chamber like the DI guns do!
The SCAR was designed with this purpose in mind. It was designed to be MORE RELIABLE than the M4.