Pistol gas on a 16" 5.56 barrel?

[tcoz]

I was reading the specs on the newly offered Freedom Munitions uppers and I was surprised (at the very least) to see that they list a pistol length gas system in the specs for the 5.56 16" upper. I'm not interested in buying a new upper but out of curiosity I wanted to ask whether this could be true or whether they might have mistakenly listed the specs for the300 BLK upper which they also offer. I don't remember ever seeing or hearing of anybody using pistol gas in a 16" barrel.
Here's the actual ad copy from the Freedom Munitions website: (it's under "Additional Details")


"Freedom Munitions has a very limited run of complete AR-15 uppers in stock ready to rock. These uppers feature a Seekins Precision free float handguard, a melonite coated barrel, mil spec complete bolt carrier group and will fit on any mil spec lower receiver. For a limited time buy any one of our uppers and receive a box of 50 rounds to go with that upper absolutely free.

Complete OEM Upper Half Specs:
- Mil-Spec Forged upper with M4 feedramps (machined from a Cerro upper forging)
- Barrels are made from 4150 Chromemoly and Melonite coated
- Stainless Steel gas tube
- Melonite .750 standard low pro gas block M16 made from 4140
- Standard Mil-Spec Charging Handle
- Standard Mil-Spec A2 flash hider
- Seekins Precision MSCR V2 Keymod rail
- M16 BCG with forward assist serrations, 9310 bolts (MPI tested) and 8620 carriers
- Handguard is Seekins Precision MCSR V2 handguard (6061 alum.)
- All uppers have been test fired for proper function

Additional Details: 16" Barrel, pistol gas length system with 10” Seekins Precision free float handguard with a 1:8 twist melonite barrel. Includes a free box of 50/ct 223 Rem 55 grain ammo.

Note: All federal, state and local laws apply customers should know their laws before buying. All NFA rules apply."

 

[USAF_Vet]

Never heard or seen a pistol gas system on a carbine barrel either. Didn't think there'd be much demand for one.

 

[Tirod]

If it sells then they recover the costs on a screwup. And it might be a workaround for a state law that doesn't allow pistols up front but will after they are NFA'd. Just speculation on my part.

 

[C-grunt]

My guess is it's a typo.

 

[HammsBeer]

Pistol gas on a 16" would be way way way overgassed and beat the crap out of the BCG. typo

 

[strambo]

My guess is copy and paste error.