AR15 has block pin

td922 · September 25, 2017, 10:08 PM

So I’m looking to build an AR15 and I decided to get the Faxon .750 block and a BCM mid length gas tube. I’m just wondering if the roll pin comes with the gas block or do I have to get that separately.

DubC-Hicks · September 25, 2017, 11:48 PM

The gas tube usually comes with the roll pin. I bought a barrel/block combo from Faxon and I don't remember the roll pin coming with it.

Mobuck · September 26, 2017, 06:18 AM

You may as well own a "package" of gas tube pins as the loss rate of those is well over 100%.

stagpanther · September 26, 2017, 07:06 AM

My experience has been blocks usually don't come with pins (unless otherwise stated)--gas tubes usually do (unless otherwise stated). If it's a combo block and tube it should come with the pin unless the supplier is into "gotcha!" when your putting your build together and find there's no pin.

bfoosh006 · September 26, 2017, 09:44 AM

I will second the "buy spares"... nothing like losing one of those tiny buggers, and having that hold up your build.

td922 · September 26, 2017, 09:55 AM

Yea I looked up the price on those and they’re pretty cheap so I’ll pr Badly end up getting extras. I just need a couple more tools like a roll pin punch and then I’ll get started on my first build.

Ibmikey · October 9, 2017, 08:01 AM

While you are at it include the two different detents and extra ejector and take down pin springs, firing pin cotter keys, bolt stop plunger and spring, front sight plunger and spring and buffer retainer and spring. Seems the small parts can go “boing” and get lost even if building it in a sterile room.

September 25, 2017, 10:08 PM	#1
td922 Junior Member Join Date: March 23, 2017 Posts: 6	AR15 has block pin So I’m looking to build an AR15 and I decided to get the Faxon .750 block and a BCM mid length gas tube. I’m just wondering if the roll pin comes with the gas block or do I have to get that separately.

September 25, 2017, 11:48 PM	#2
DubC-Hicks Senior Member Join Date: December 20, 2009 Location: Backwoods, Northern MI Posts: 1,031	The gas tube usually comes with the roll pin. I bought a barrel/block combo from Faxon and I don't remember the roll pin coming with it. __________________ ”Gun control is like trying to reduce drunk driving by making it tougher for sober people to own cars.” ~Unknown

September 26, 2017, 07:06 AM	#4
stagpanther Senior Member Join Date: March 2, 2014 Posts: 11,771	My experience has been blocks usually don't come with pins (unless otherwise stated)--gas tubes usually do (unless otherwise stated). If it's a combo block and tube it *should* come with the pin unless the supplier is into "gotcha!" when your putting your build together and find there's no pin. __________________ "Everyone speaks gun."--Robert O'Neill *I am NOT an expert--I do not have any formal experience or certification in firearms use or testing; use any information I post at your own risk!*

September 26, 2017, 06:18 AM	#3
Mobuck Junior member Join Date: February 2, 2010 Posts: 6,846	You may as well own a "package" of gas tube pins as the loss rate of those is well over 100%.

September 26, 2017, 09:44 AM	#5
bfoosh006 Senior Member Join Date: February 17, 2009 Posts: 1,089	I will second the "buy spares"... nothing like losing one of those tiny buggers, and having that hold up your build.

September 26, 2017, 09:55 AM	#6
td922 Junior Member Join Date: March 23, 2017 Posts: 6	Yea I looked up the price on those and they’re pretty cheap so I’ll pr Badly end up getting extras. I just need a couple more tools like a roll pin punch and then I’ll get started on my first build.

October 9, 2017, 08:01 AM	#7
Ibmikey Senior Member Join Date: June 1, 2013 Location: Now relocated to Texas Posts: 2,943	While you are at it include the two different detents and extra ejector and take down pin springs, firing pin cotter keys, bolt stop plunger and spring, front sight plunger and spring and buffer retainer and spring. Seems the small parts can go “boing” and get lost even if building it in a sterile room.