FN 15 Tactical series...pinned gas blocks?

[pointblank4445]

Can anybody advise of the gas blocks on the FN Tactical II and/or the Tactical FDE P Lok have pinned low profile gas blocks or they are set screw only?

[GH41]

Can anybody advise of the gas blocks on the FN Tactical II and/or the Tactical FDE P Lok have pinned low profile gas blocks or they are set screw only?

Is the answer going to influence your decision to purchase or just satisfy your curiosity? Six of one vs a half dozen of the other.

[pointblank4445]

Is the answer going to influence your decision to purchase or just satisfy your curiosity? Six of one vs a half dozen of the other.

How are my motives of any consequence?

[GH41]

How are my motives of any consequence?

They aren't to me. My point is... Set screws or pins offer no advantage over each other if installed properly. Sounds like yo want to start a fight.... Color me out of here. Pick a fight with someone else.

[RJflyer]

The original FN 15 Tactical MLOK had a screwed on gas block. The newer Tactical II model (36312-01) has a pinned gas block.

[pointblank4445]

The original FN 15 Tactical MLOK had a screwed on gas block. The newer Tactical II model (36312-01) has a pinned gas block.

Thanks for the response.

[RJflyer]

The original FN 15 Tactical MLOK had a screwed on gas block. The newer Tactical II model (36312-01) has a pinned gas block.

I guess I'll elaborate on my experience FWIW. I have both the FN15 Tactical Carbine (36313) and FN15 Tactical Carbine II (36312-01). Both have low profile gas blocks. The Tactical Carbine's is retained with two Allen screws at six o'clock. The Tactical Carbine II's is retained with a single, large solid pin.

After seeing this thread I decided to see if my Tactical Carbine was dimpled for the gas block's Allen screws...it wasn't. As a matter of fact it took surprisingly little effort to unscrew the Allen screws. I couldn't see any sign of loctite or rocksett on the screws. This was a bit concerning to me, however, it never gave me any issues when firing the gun. Caveats: obviously this is only a sample of one; also I haven't run this gun particularly hard.

I'm not posting this to make an assertion that pinned gas blocks are inherently better than set screws. I'm simply posting my experience for the OP and anyone else who might be trying to decide between these two models. Personally, I have greater peace of mind with my Tactical Carbine II's gas block. Whether that's truly warranted or not...you can decide.

[nksmfamjp]

They aren't to me. My point is... Set screws or pins offer no advantage over each other if installed properly. Sounds like yo want to start a fight.... Color me out of here. Pick a fight with someone else.

Yea they do.....set screws are a bad joint regardless of how executed. Roll pins are a good design in the ones I have seen. Even if you dimple the barrel and rockset the screws, they ARE coming loose someday. With a proper roll pin or taper pin....never coming loose.

[Iraqgunz]

I have never seen properly installed set screw block come loose and I am not the only one. Every BCM, SIONICS, SOLGW and several other companies that make these type of upper use almost identical installation procedures and they aren't falling apart.

We have demo guns and my personal guns with 10 of thousands of round on them and they are still running 100%.

Yea they do.....set screws are a bad joint regardless of how executed. Roll pins are a good design in the ones I have seen. Even if you dimple the barrel and rockset the screws, they ARE coming loose someday. With a proper roll pin or taper pin....never coming loose.

[Rifleman_04]

We can’t have preference anymore? The guy was asking for info. Not opinion. Didn’t look like he was starting a debate either.