Geissele SSA and KNS 2nd Gen

[DDRH]

Hi All,

just wanted to confirm...i'm a lil confused. I've read about KNS anti walk pins, not recommended for Geissele triggers. Personally i'm not sure if it functions or not, but i like the way it looks, so i'd like to install them.

there was mention on of the grooves on the pins meant for the springs, and if using KNS pins, there's no grooves?

i've got 2 threads...the 1st one says NOT to use KNS with Geissele triggers, but this was an older right up (2009.09.??), when i think the SSA triggers were not available yet.

2nd thread, DanHuun, says he's used KNS on all 5 of his builds.

1st link:

http://www.calguns.net/calgunforum/showthread.php?t=223511

2nd link:

http://www.calguns.net/calgunforum/showthread.php?t=264408&page=4

any ideas?

if the KNS pins are truely not needed, it's fine with me...just cosmetics (unless it really works...ahaha)

[J_Rock]

Dont waste your money. Geissele pins are percision ground and much higher quality than the KNS pins.

[Group B]

Dont waste your money. Geissele pins are percision ground and much higher quality than the KNS pins.

Ok, well then what are you supposed to do to prevent wear from the pins that came with your Geissele trigger, rotating in their holes on your lower receiver?

[DDRH]

well, from what i've read, Geissele, himself does not recommend KNS pins...but that was for the older triggers, i believe. (link on original post)

I haven't heard anything about KNS with the newer SSA/SSF triggers

[NiteQwill]

Do NOT use KNS pins if you are using a Geissele trigger.

The pins included in the SSA trigger are antirotating.

KNS pins are a gimmick.

You WILL damage your J-spring in your Geissele trigger if you use KNS pins. Your trigger pull will turn to crap and you just wasted your $175+.

[DDRH]

Do NOT use KNS pins if you are using a Geissele trigger.

The pins included in the SSA trigger are antirotating.

KNS pins are a gimmick.

You WILL damage your J-spring in your Geissele trigger if you use KNS pins. Your trigger pull will turn to crap and you just wasted your $175+.

didn't know SSA triggers had anti rotating pins...that's awesome. i actually like the look of the KNS pins...but function is more important than cosmetic..and it's just a lil cosmetics...not really noticeable.

thanks for the replies fellas...pls add more comments if any

[DanHuuN]

Do NOT use KNS pins if you are using a Geissele trigger.

The pins included in the SSA trigger are antirotating.

KNS pins are a gimmick.

You WILL damage your J-spring in your Geissele trigger if you use KNS pins. Your trigger pull will turn to crap and you just wasted your $175+.

I dont see the problem, and I haven't damaged any of my pins. I know it isnt recommended but still unsure how the KNS pins will cause a problem. I've removed and installed my triggers many times and still no problems.

Im actually installing another SSA tonight on another lower and I'll do it with the geissele pins and compare it to my others with KNS. So far, no difference. Maybe I got lucky?!?

[DDRH]

I dont see the problem, and I haven't damaged any of my pins. I know it isnt recommended but still unsure how the KNS pins will cause a problem. I've removed and installed my triggers many times and still no problems.

Im actually installing another SSA tonight on another lower and I'll do it with the geissele pins and compare it to my others with KNS. So far, no difference. Maybe I got lucky?!?

Pls update us. Thanks!

[NiteQwill]

I dont see the problem, and I haven't damaged any of my pins. I know it isnt recommended but still unsure how the KNS pins will cause a problem. I've removed and installed my triggers many times and still no problems.

Im actually installing another SSA tonight on another lower and I'll do it with the geissele pins and compare it to my others with KNS. So far, no difference. Maybe I got lucky?!?

No, look at the schematics of the SSA and the J-spring... when using the KNS pins, they do not provide a groove for the J-spring to sit in. You do not damage the pins, you damage the spring. The J-spring, therefore, becomes "crushed/bent/etc" because of this and causes the trigger to become "mushy" (think of an RRA 2-stage after a few thousand rounds; they are notorious for this).

The use of KNS pins also voids the SSA warranty, Bill said this himself. The damage is apparent with the use of non-Geissele pins.

KNS pins are created to fulfill the area where oversized trigger/hammer holes in the lower receiver are not compatible with lower receivers. They are a bandaid and not recommended for use unless you HAVE that issue.

http://www.ar15.com/archive/topic.html?b=3&f=118&t=386767

[CHS]

KNS pins are good for two reasons, and two reasons only:

1.) You have an actual full auto lower, or RLL or RDIAS. The KNS pins will reduce wear and tear.
2.) You have a 9mm with an unramped bolt. 9mm bolts are notoriously hard on hammers and the KNS pins reduce the wear and tear.

Aside from that, most people that install KNS pins do it because they have a trigger pin walking, and that's because they install the hammer spring in backwards. The KNS pins don't fix the problem, they just make your gun work with the problem.

[NiteQwill]

Aside from that, most people that install KNS pins do it because they have a trigger pin walking, and that's because they install the hammer spring in backwards. The KNS pins don't fix the problem, they just make your gun work with the problem.

Amen.

Not only that, people install it because "it looks cool." Trigger/hammer pins will NOT walk if everything else is installed properly (unless you have an out of spec lower receiver).

[DanHuuN]

No, look at the schematics of the SSA and the J-spring... when using the KNS pins, they do not provide a groove for the J-spring to sit in. You do not damage the pins, you damage the spring. The J-spring, therefore, becomes "crushed/bent/etc" because of this and causes the trigger to become "mushy" (think of an RRA 2-stage after a few thousand rounds; they are notorious for this).

The use of KNS pins also voids the SSA warranty, Bill said this himself. The damage is apparent with the use of non-Geissele pins.

KNS pins are created to fulfill the area where oversized trigger/hammer holes in the lower receiver are not compatible with lower receivers. They are a bandaid and not recommended for use unless you HAVE that issue.

http://www.ar15.com/archive/topic.ht...f=118&t=386767

I meant SPRING, not PINS. Anyways, I will check them tonight and see how things are. I will give an update once I check the J-Spring.

[CHS]

Amen.

Not only that, people install it because "it looks cool." Trigger/hammer pins will NOT walk if everything else is installed properly (unless you have an out of spec lower receiver).

Personally, I think they look kinda silly, and I have a set on my 9mm. Heh

I'm waiting to put together the time/money to get my bolt ramped so I can swap out my hammer and ditch the KNS pins. I really don't like them.

[CHS]

I meant SPRING, not PINS. Anyways, I will check them tonight and see how things are. I will give an update once I check the J-Spring.

The J-hook really is more of a pin than a spring.

[DanHuuN]

The J-hook really is more of a pin than a spring.

We are discussing the PIN/SPRING that can be visually seen when looking through the Hammer hole right?