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SIG SAUER Sig516 Gen 2 Upper Receiver Assembly Complete
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Most Helpful Positive Review Best Gas Piston Upper Hands Down
So I have purchased a handful of these uppers once I got away from DI AR’s I have dedicated one to putting it through hello . So far so good. 7500 rounds and so far not one failure. Only maintenance I do is to clean the barrel for break in and keep the bolt oiled with Lubricant (Lubra Silk). Not even a light strike and I have fed it the cheapest Ammo I can find especially in a shortage.
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Great deal, sweet weapon system

by Nevertoomany895, Verified Owner from AZ, United States Written on May 27, 2022
I have bought a few of these, top notch uppers. Fast ship and great deal from Ootics planet. Great upper, heavy, but the piston system and quad rail will do that. Trade off is an equal or some say superior system to the HK without the crazy price tag
Pros:
  • Overall just great
  • Cold hammer forged barrel
  • Piston system for cleaner cooler running
  • Adjustable gas system
Cons:
  • Heavy with the quad rail
Best Used for:
  • Protecting Murica!
Would recommend: Yes
1 of 1 found the following review helpful.
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Best piston upper for the money

by Michael S, Verified Owner from KY, United States Written on February 24, 2022
You won't find them for long, and definitely not as this price. It's an overrun order, but it usually sells out fast. Word must not be out there here yet, and it's been a few years. You really can't find a quality upper like Sig, especially at this price. You'd be crazy to get something else while they're in stock.
Pros:
  • Price
  • brand
  • Availability
Cons:
  • weight
  • Barrel length options
Would recommend: Yes
2 of 2 found the following review helpful.
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Great upper at a very good price

by BD, Verified Owner from IN, United States Written on February 24, 2022
Receiver came packaged very securely and pinned onto my assembled lower with no issue.I have been able to send a few rounds through the upper and everything functioned flawlessly. It’s a very good value with Sig quality.
Would recommend: Yes
Was it helpful to you? Yes | No

Solid and well built

by Benjamin, from TX, United States Written on January 31, 2022
There's not been a whole lot of chances to shoot but what we've done has shown these uppers to be solidly built. And for the price OP had them listed for pretty spectacular. I do wish that they came with irons of some sort but that's not nearly enough of a gripe to lower the stars.
Would recommend: Yes
2 of 2 found the following review helpful.
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Excellent Buy From Optics Planet

by Ed Medina, from NC, United States Written on November 27, 2021
An excellent buy from a reputable company! I purchased a Sig Sauer Sig516 Gen 2 complete upper assembly from Optics Planet because it is an improved model of a more expensive product; the HK416. This exclusive item was reasonably priced for this top quality product. Customer service is A#1. After a 10 month wait, I was thrilled to receive a call from Customer Service Representative, Rob, who helped with all of my questions and concerns, and processed my purchase order immediately. I highly recommend this company and their high end merchandise to friends and family.
Pros:
  • Quality
Cons:
  • None
Would recommend: Yes
6 of 9 found the following review helpful.
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