Rifle-length gas tube. Rifle-length gas tubes are specifically designed for 20-inch and longer barrels.
Rifle length gas tubes are roughly 12" in length from the receiver. Depending on how you came to your measurement, it may or may not be what you need. Gas tubes are dependent on the gas system of the barrel: rifle, mid-length, carbine, or pistol length. Email us at techsales@opticsplanet.com and let us know the exact barrel you have, that way we can confirm the correct length gas tube for your barrel.
It will depend on the specific model of the M&P15 you have. Please email us at techsales@opticsplanet.com regarding your question.
The Spikes Tactical Melonited Gas Tube is Midlength model is 11.75".
For the 8.1" Spikes Tactical 5.56 barrel you will need the pistol length Spikes Tactical Melonited Gas Tube.
You will need he pistol length Spikes Tactical Melonited Gas Tube for a 7.5" AR pistol. The pistol length model is model number SUGT0M1.
The Spikes Tactical Melonited Gas Tube length you need will depend on what type of barrel you are using and what length gas tube that specific barrel uses. For an 18" barrel you will most likely need a carbine or mid length gas tube.
Yes, the Spikes Tactical Melonited Gas Tubes will work with a .750 low profile gas block.
The length is 4" in
You will either be using a carbine or pistol length, It should be specified on the barrel manufacture website.