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Things I noticed with SIG716 GEN1 and GEN2

40K views 59 replies 24 participants last post by  xrlizard 
#1 ·
1st: the obvious butt stock and grips are different.
2nd: the piston is slightly different.
3rd: the buffer is different.

I recently sent my GEN1 716 back to Sig Sauer and they sent me a new GEN2. Things went terribly wrong the first time i attached a suppressor. (AAC 762SDN-6).

The increase in back pressure destroyed the lower receiver by the buffer tube. YES, THE REGULATOR WAS SET TO SUPPRESSED MODE. I assumed that stock GEN1 buffer could handle a suppressor but it cannot. the back pressure sent the BCG slamming into the lower receiver. It chipped away the aluminum.

So, for you GEN1 owners, make sure you change your buffer to a H2 or H3 buffer if you are going to run suppressed. When i received my GEN2 716, the buffer is different than my GEN1. I can clearly see H2 etched into the it.

Now that i think back, the GEN1 buffer could have been a .223 buffer. I highly recommend that all GEN1 716 owners invest in a H2 buffer. It will not affect regular operation mode. Also, it could reduce some felt recoil for you.

On a side note, customer service was excellent. They sent back a new rifle and all my parts. I complained that i did not like the new buttstock and grip. they were contibuting factors for my original purchase. They sent me back my GEN1 Magpul parts. (they fit perfectly) 10min swap.

rifle swap: 10days including weekends.
parts shipping 14days.

I think the GEN2 shoots better too! maybe... lol
 
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#40 ·
No marks on the carrier, I believe you are correct ...tilt. I have just ordered the H2 buffer recommended by a few posts. I definitely had the H or H1, it was 3.9 oz. when I threw it o the scale. I also tore the rifle apart and gave it a good clean. The bolt was a bit sluggish with the gas rings(seals)installed. I have seen in a number of posts they are optional so I removed them. I will post a range report with them gone....This is going to be fine, I will mill the lower a small bit and remove the impact marks from the lower (gen 2 lowers have extra material removed from the factory in this spot!)put in my H2 buffer and hope this is a good fix. Buying it used does not give the option of returning it to Sig and I want to keep this rifle not sell it for something else. I guess the only other this I could do is get the Gen 2 bolt with the 2 extractors ...do they sell these as a replacement part?
 
#45 · (Edited)
sent in the pictures to SIG yesterday morning and left a message today with the rep I spoke with yesterday. No reply as to what they will do. I guy I got it from swears there has never been any problems with the rifle. Only a few mags through it, which I agree with ...looks new. He offered to take it back for a full refund if I do not want it...good guy. My question is can this be fixed by changing out to the H2 buffer and just removing a bit of material from the spot it made contact? the newer ones have this done by Sig.I attached a pic of mine and one of a newer 716 with the material removed by sig and the H2 buffer. Can you tell...I really want to keep it. He offered a Tavor x95 in its place as well....

Auto part


Electronics Technology Electronic device Audio equipment
 
#46 ·
That is caused by bolt carrier tilt.

My rifle got replaced because of that and signs of high pressure with factory ammo and not being able to remove a loaded round from the chamber after firing five rounds or so.

Return it or send it to Sig for a new rifle if they will approve. You have to send it in for evaluation on your dime first. Your gamble ...

I'll be selling my new rifle this month.

It now shoots good, just want something better and more expensive.
 
#48 ·
Just got the email asking if the rifle is completely stock. I replied that I believe the trigger is aftermarket, honesty s best...took it out and there is no brand on it but it is a red drop in trigger, not thinking it came from Sig. I told them that I really do not think that a trigger would cause this kind of damage no matter what. No reply yet. Hope they take care of me.... Auto part Machine tool Machine
 
#56 ·
I know this is an older thread, but very relevant to me. Bought an early 716 with Magpul green plastic stuff in May '13 (made in Jan '13), added a scope and iron sights to it and stuck it on my gun rack; never fired. (Had a health issue.) Well, fast fwd to now: finally received my SIG SRD762-QD silencer and was about to install the Taper Lok adapter, until I started reading several posts here and elsewhere about issues people were having with damaged lowers and replacing the buffer on older models. Wish I knew the future of the 716!

I just called SIG cust svc and revealed my skepticism, but the guy on the other end assured me everything would be OK if I used supersonic ammo, instead of sub. I even asked if I could send it in for an upgrade, but no. He assured me it wouldn't blow up on me, and said send it in if I had any problems.

Wondering if I should go ahead and buy an upgraded (H2?) buffer, before I try it out with the suppressor? Also, would one of the newer upper receivers mate with my old lower? I like the newer style and lighter weight. Please advise.
 
#60 ·
@txflash, that production date would still be a Gen 1. You can also check to see if it has dual ejectors, which is one of the updates Sig did along the way to eliminate some issues, but I think that came along a bit later as well. One last thing to remember - while we hear about the bad guns, we rarely hear about the ones that run like a top from the get-go. Unfortunately, no way to know which one you have until you run it, but if there are issues, Sig will make it right for you.
 
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