I am assuming the pistons are different, is this correct?
(My 516 is in NFA jail, I was just curious...)
Posted: 9/10/2014 6:31:53 PM EDT
[#1]
Quoted: Does the 516 use the same bolt as the 556xi?
I am assuming the pistons are different, is this correct?
(My 516 is in NFA jail, I was just curious...)
View Quote
No. The 516 uses an AR type multi-lug bolt while the 556xi uses an AK style bolt with two big lugs. The 556xi has some compatibility with the 556, but the 516 is completely different.
Posted: 9/11/2014 9:58:00 AM EDT
[#2]
Not unexpected but good to know...
Posted: 9/12/2014 4:03:51 PM EDT
[#3]
If I had to guess I'd put the parts compatibility between the 556XI and 516 at:
Magazines
Muzzle Devices
Rail Mounted Accessories
Posted: 9/12/2014 11:06:08 PM EDT
[#4]
Quoted: Does the 516 use the same bolt as the 556xi?
I am assuming the pistons are different, is this correct?
(My 516 is in NFA jail, I was just curious...)
View Quote
The 516 is an AR type rifle, and the 556 is a Sig 550 type rifle.