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Last edited by PALADIN-hgwt; 07-09-09 at 23:04.
Qui Me Tangit Paenitebit (he who touches me will repent)
Even google couldn't help my failure to spell Rocksett correctly.
I left off the second "t" once I corrected that I found in on the net.
My question about Loctite in the gas port was prompted by the fact that I couldn't visualize how I would put loctite on the gas port area and then slide a Vltor clamp gas block on the barrel without possibly getting loctite in the gas port. Of course with a split clamp design like YHM this would not be an issue.
Again, thanks for the help Grant.
The blocks on these rifles where rocksett by an armorer -- however they where used with a BOTB suppressor - and impacts from rope and para decents - as well as impacts through a competition (another went down in Benning giving a buddy of mine a bolt action SPR for a spotter gun).
I depend upon my work guns for the life of myself, my team and our clients and I will not accept a non pinned block.
I am sure Grant's method would work, and many have had sucess with clamped blocks -- however I for one -- only need to see the fact that USSOC recalled all non pinned blocks for the SPR/MK12's to pin them. Thats shows that there is obviously an issue --- maybe not an issue all would be affected by - but if your planning on trusting your life to a weapon you want to ensure you can take the most Murphy accessible issues that you can.
Kevin S. Boland
Manager, Federal Sales
FN America, LLC
Office: 703.288.3500 x181 | Mobile: 407-451-4544 | Fax: 703.288.4505
www.fnhusa.com
KevinB is 100% correct--if it is not pinned, I don't want it. Period. Every clamped/screwed gas block/FSB system, including those using both red loctite and rocksett, that has been tried by USG/DOD organizations to date has eventually failed in extended field conditions, rendering the weapons unusable--not a good condition in a combat zone... Pinning works; why not go with a design proven to reliably and consistently work time-after-time in harsh conditions and hard use vs. something that does not have such a good track record?!?!?
I agree that pinning is the most robust way to go.
I do question though, the method that some of the failed GB's were attached and or if they were using a clamp GB.
Here are some questions that I would have to see answered before I would totally discredit the method in which we install GB's:
1. Did they use a clamp model GB?
2. Was the GB covered by the rail?
3. Was the barrel, GB and screw degreased properly?
4. Did they use green loctite on the barrel?
5. Did they use rocksett on the screws?
Most people use red loctite on their gas block screws. This is a not a good choice as red loctite does not have a high enough temp threshold.
C4
Last edited by C4IGrant; 02-18-08 at 17:21.
Ellery Holt
Oh, I see.. if we disagree with your method, we are "Tactical Only" and we just overgeneralize based on experience.Well nobody is claiming that they can't be installed incorrectly and then later fail to take abuse. The detailed, supported claims I've seen provide far more useful information for decision making than, "I had one once and it didn't work." Nevertheless, the "tactical only" crowd is going to overgeneralize into blanket condemnation for every model and method. What ever keeps their confidence in their weapon up, I guess.
Puhleeze.....
Guys who's experience is well documented stick with Pinned Gas blocks for a reason. Post all the pics of a sheared pin you want...Mine will always get pinned and that is what I will always recommend.
The original poster asked how to correctly install a clamping gas block. Some here offered him advice to that end and I offered evidence that such a method can be very strong and robust.
Some other posts don't respond to the guy's question but instead serve to tell how absolutely black and white; how very my-way-or-the-highway things can be for those with the very highest, very Tier-One standards.
[shrug]
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