Dec 16, 2013 · I broke out the studio lighting to get this video offering a detailed look at the HK 556. Below the video are some of my thoughts at this point about the HK 556. (Monetized youtube channel video link removed. diesel1959) Is there a noticeable difference between a piston driven system and a gas direct impingement system?

Jul 6, 2011 · HKPRO is a forum community dedicated to Heckler and Koch enthusiasts. Come join the discussion about HK pistols and rifles, optics, hunting, gunsmithing, styles, reviews, accessories, and more!

Jul 26, 2010 · I've been reading posts on here that make reference to the MR556 and the MR556A1. Are these two different rifles, or are they the same one? If they are different, what are the differences between the two?

Jul 11, 2011 · HKPRO is a forum community dedicated to Heckler and Koch enthusiasts. Come join the discussion about HK pistols and rifles, optics, hunting, gunsmithing, styles, reviews, accessories, and more!

May 23, 2011 · I could use some advice with choosing an optic for my MR556A1. I'm looking for as much of an "ideal" setup that allows for both semi-sniping and CQ work. I've read about Aimpoints, ACOG's and ELCAN's but I realize I might be missing something. * Ecotech isn't in the running due to battery...

Jul 15, 2011 · Forgive me for my lack of knowledge on the subject of suppressors but this is my question. Are suppressors Caliber specific or could I have one suppressor for both my primary (MR556) and secondary (HK 45C) say if I am able to get a threaded barrel for it. Now that I am living in a gun friendly state, I want to take advantage of being able two own one. But if I can buy one for both guns that ...

Jan 4, 2019 · HKPRO is a forum community dedicated to Heckler and Koch enthusiasts. Come join the discussion about HK pistols and rifles, optics, hunting, gunsmithing, styles, reviews, accessories, and more!

Dec 11, 2014 · HKPRO is a forum community dedicated to Heckler and Koch enthusiasts. Come join the discussion about HK pistols and rifles, optics, hunting, gunsmithing, styles, reviews, accessories, and more!

Nov 28, 2024 · No more custom barrels from nefarious needed? Are there any compatibility issues with the a1 & a4? Would be awesome if they sold the a4 pistol upper as a kit like they do the a1 lol. And just outta curiosity, what are the differences between the a1 & a4 rifle uppers?

Feb 12, 2018 · HKPRO is a forum community dedicated to Heckler and Koch enthusiasts. Come join the discussion about HK pistols and rifles, optics, hunting, gunsmithing, styles, reviews, accessories, and more!