WTB/WTT for impulse threaded aftermarket barrel

[autococker04]

Just got a gog enmey and the only downside I see is the stock barrel is kinda stumpy. And impulse threaded.

ive got these I’d be willing to trade, or I’m willing to spend $20 shipped for something with impulse threads. Preferably in black.

[Jonnydread]

I have a spare UL back, but I don't think I have an extra front