AR-15 / M4-A1 / M4 Carbine Length Reinforced Gastube for Airsoft AEG
(UFC Guarder G&G G&P)

"I bought this in 2009 for an AEG which I no longer have, and six years later I bought another one for my AGM GBB M4. It works, but you need to get the realistic looking barrel-nut/delta ring. The AGM GBB M4 has a cheap AEG barrel nut with no gas-tube hole. I got a D-boys delta-ring for an AEG off Ebay and I took a gamble and it actually worked on the AGM GBB M4.

Very nice addition to your M4! Looks realistic and reduces hand guard wobble somewhat. I recommend this if you're into more realism.

Pros:
-Hard stainless steel
- Does what it's supposed to do, sit there and look pretty

Cons:
None

"I think they heard the last review, because mine definitely came with the retention pin to secure it to the gas block. Fits perfect with my noveske barrel and gas block system.

PROS:
- Sturdy
- proper length
- pre-bent and drilled
- comes with pin

CONS:
there are none. Worth the money

"Very nice addition to your M4! Looks realistic, more professional, and reduces hand guard wobble somewhat. I recommend this if you're looking to make your weapon more professional feeling and look cool.

Pros:
- Hard steel
- Chrome
- Does what it's supposed to do, sit there and look pretty :3

Cons:
- Didn't come with the pin that secures it to the gas block

Other than that, I'm happy with it. Thanks Evike!