Sight Options and Loctite for G17C - Page 2
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  1. #11
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    Speaking of, the thread with the oval hole that was unexplained, may be this :

    all sight holes are oval to insure that the front sight goes on strait

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  2. #12
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    I do use Loctite when replacing front sights. My choice is 262 but 242 works well too as long as you clean/degrease the screw with alcohol. I’ve never had to use heat or more than finger force to remove 262 and have never had one come loose.

    The very short description of sight radius (distance between sights). If you have an imperfect sight picture when the round is fired - that error is amplified the shorter the sight radius. The further away the target being shot at is, the greater the effect.

    Here’s a chart I just found that shows with a 3” sight radius and a .5 mm error in sight picture the effect is 3 inches at 25yds. But with a 6” radius the effect is only 1.4 inches.



    Don’t get too consumed with this for the type of shooting you want to do - almost all pistol self defense shots are at extremely close ranges. It’s just something I keep in the back of my mind and really just consider for competition shooting.

    There is a reason Glock created the 17L for competition and not long after new rules about the pistol length were created, effectively banning the 17L from competition! They had to shorten it down to the model 34 to be more fair.


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  3. #13
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    Thanks MtStream. This is most helpful. I might be getting my new sights this week from a local manufacturer. Much cheaper here where I am at. I will keep you guys posted how it's gonna look like and how it performs. It's a Fiber Optic Front Sight with Black sights.

    I also have a question on the Recoil Spring Assembly. What's gonna happen if I change the stock Polymer with fixed spring (is it 17 lbs?) with a Stainless Steel Guide Rod and 11 lbs spring (not fixed on the guide rod)? I am using reloads with the following data: 130gr teflon head 1.125 oal, 4.0 vihtavouri N320.

    Also, what will be the difference with a 12 lbd spring (also not fixed on the stainless guide rod)?

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  5. #14
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    One of the advantages of non captive recoil springs is that they are easy to change at the range... Take both springs to the range and try them... See which you like the best...
    "While the anti-gunners seem very concerned about the "one life" that your firearm might take -- they are not very concerned about the lives it will save." Jon H. Gutmacher, Florida Firearms - Law, Use & Ownership

  6. #15
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    My own suggestion would be to stay with your original choice of TruGlo TFX Pro 'LOW LIGHT' sights. Don't try to put them on by yourself. Have someone who has done this before and has all of the right equipment do it for you. (It's worth the $25-30 bucks!)

    With over 40 years of pistolsmithing experience to go by, I think that anyone who uses 'red' Loctite (#271) on gun sights is just plain nutz! Red Loctite is not now, or ever has been formulated to use on anybody's gun sights. (Remember: Someday those sights are going to have to come off the gun; and, if they were originally put on with red loctite then THAT ain't going to happen without a great deal of unnecessary effort and expense.)

    I would also suggest you forget about the remark that a TruGlo front sight will shorten your available sight radius—THAT is just plain nonsense. Out in the real world something like that will never happen; and, for sure, neither you, nor anyone else will ever notice any such minuscule reduction. (This could only happen on an internet gun forum—OK!)

    If you are wondering what type of Loctite formula I use to install my own front sight jobs? Well, I use 'purple' (#222) low strength Loctite; and, so far (about 12 years), I have never had a problem with a loose front sight; BUT I have had a problem with red Loctite that an idiot gun dealer used on one of my Glocks. (It cost me several lost days, and $100 + dollars in order to have a highly skilled machinist mill that damned set of sights off the gun without doing any damage to the slide!)

    By the way, over the years I've seen dozens—if not hundreds—of G17's with TruGlo sights on them. Other than the standard TruGlo sights being somewhat fragile and susceptible to crazing and other damage from certain cleaning solutions, I have never heard any sort of complaint about them. TruGlo TFX Pro's are 'good to go'!
    Last edited by Pistolero; 11-10-2020 at 09:13 PM.

  7. #16
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    Hey guys, just wanted to give an update on my G17C. So I ended up replacing my factory sights with a locally-available Fiber Optic Front Sight and Iron Serrated Rear Sight. I tested it at the range over the weekend it it was a big improvement from the factory ones.

    I also replaced my factory guide rod into a stainless steel one, and the factory recoil spring into an 11lbs one. I fired it using hand reloads (130gr teflon head 1.125 oal, 4.0 vihta vouri N320), did 260 rounds, and I never encountered any issue. One thing I noticed though is when I shot at about 10 to 15 feet, my bullets seem to be going lower? Does the 11lbs spring have something to do with it? Or maybe it's just me?

    I also noticed that when releasing the Slide Lock lever after doing a magazine change, the slide seems to be in "slow motion" compared to when I had the factory recoil system.

    Educate me more please. Haha!

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    Hey, Miami, what are you doing with an 11 lb recoil spring on your G17C? What possible reason could you have for doing that? (And don't say 'better recoil control') Can't say for certain, but Glock sights are probably designed to place bullets, more or less, on the target center at 25 yards. So, the fact that you're shooting slightly low at 3 yards doesn't surprise me. Suggest you don't continue to beat the hell out of your Glock's frame, and put the correct 16 lb recoil spring back into the gun.
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  9. #18
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    They said that for improved recoil management, and if you want to shoot competition, 11lb spring is better. But really, what is the effect on my firearm if I use an 11lb spring or 12lb spring with the loading data that I am using (major power factor)? Is it gonna destroy my firearm or ruin some parts?

    Thanks for your input guys.

  10. #19
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    Quote Originally Posted by miami View Post
    They said that for improved recoil management, and if you want to shoot competition, 11lb spring is better. But really, what is the effect on my firearm if I use an 11lb spring or 12lb spring with the loading data that I am using (major power factor)? Is it gonna destroy my firearm or ruin some parts?
    Have you actually chrono'd your reloads in your gun? I'm not sure they will actually make major powerfactor... I'm not sure why you would want to shoot major powerfactor anyway... Are you shooting to USPSA or IPSC rules?

    The lighter the recoil, the more force the slide hits the frame with.... Hence more wear or possible damage.

    Get a couple of different recoil spring and try them... The plan is to get the gun to return to the same place after you fire it... Too low, the spring is too heavy... too high, the spring is too light... Get some Wolf springs and try them out.
    "While the anti-gunners seem very concerned about the "one life" that your firearm might take -- they are not very concerned about the lives it will save." Jon H. Gutmacher, Florida Firearms - Law, Use & Ownership

  11. #20
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    Hi _jb, I haven't personally chrono'd my reloads (I only get them from a reloader, I don't reload them myself) but I plan to do so this weekend. I would like to train using major power factor as I intend to get into PPSA which is the equivalent of USPSA/IPSC here in our country (I think).

    May I ask, what is the weight of the standard spring that comes with a Gen 3 G17C? Is it 16lbs or 17lbs?

    What weight of springs would you recommend given the loading data that I am using? So 11lbs and 12lbs are definitely a "no no", since these can ruin my FA?

    I am very new to this and am still trying to understand all the technicalities...

    Thank you very much...

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