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Sig Sauer SIG516 10″ 556 Upper / Video

September 13th, 2011 Leave a comment Go to comments

We just started stocking Sig Sauer’s 516 uppers and we have the 10″ SIG616 upper available in our store already.

I grabbed one for myself and shot a couple very quick videos of this upper (with full auto bolt carrier) with my AAC 7.62-SD suppressor on a Colt M16A1 lower. Below are the videos:

Update 9-14-11: We’ve got the specs, a scan of the instruction manual, and detailed photos below.

SIG516 Upper Specs

UA517-7 UA516-10 UA516-14 UA516-16
Caliber 5.56×45
NATO
5.56×45
NATO
5.56×45
NATO
5.56×45
NATO
Operating System Short Stroke Pushrod Short Stroke Pushrod Short Stroke Pushrod Short Stroke Pushrod
Gas System Adjustable 3 Position Adjustable 3 Position Adjustable 3 Position Adjustable 3 Position
Overall Length 16.0" 19.25" 23.25" 24.5"
Barrel Contour Std Std M4 Profile M4 Profile
Barrel Length 7" 10" 14.5" 16"
Rifling 1:7 RH 1:7 RH 1:7 RH 1:7 RH
Weight w/Bolt Carrier Assembly 3 lbs 10 oz 4lbs 6oz 4lbs 13oz 4lbs 14oz
Flash Suppressor M16A2 Style M16A2 Style M16A2 Style M16A2 Style
Handguard Sig M1913 Quad Rail Sig M1913 Quad Rail Sig M1913 Quad Rail Sig M1913 Quad Rail
Muzzle Thread 1/2 x 28 TPI 1/2 x 28 TPI 1/2 x 28 TPI 1/2 x 28 TPI

SIG516 10″ Upper Photos

SIG516 Upper Assembly Installation Instructions

Download a PDF (scanned) copy of this assembly installation manual or download a full copy of the SIG516 owners manual.

Other notes on this upper

The specs on the upper call out the gas system as being a 3 position gas system but the full SIG516 manual illustrates that the fourth position is optional and the fourth position shuts the gas system off for single shot operation where the bolt doesn’t cycle.

The upper does have the fourth position even though the specs call it out as a 3 position system. I’ll post a video (when the weather clears up) of the gas system in the off position with the suppressor mounted.