Dec 12, 2023 · As far as I know the 51SD was created for the SBS but was quickly dropped because it was just not working (as in low penetration, too heavy recoil and possibly more issues).

The MC-51SD is a possibly fake, British battle carbine, developed from the previously tested HK G3 conversion known as the MC-51. It was purportedly issued to special forces groups in the United Kingdom for trials to replace the dated, and at the time in-service, L34A1 suppressed submachine gun.

Mar 30, 2016 · Basically, the HK51K is a super compact 7.62. They made those, the regular HK51 and they made the HK51B, which was a beltfed model. I believe PCS still makes these types of guns (check their website under Dragons). Here's the HK51B.

Oct 22, 2021 · With full-power 7.62mm NATO ammunition and all of an 8.3 inch barrel, the HK51 serves best as an attention-getter on a range full of other machine guns… https://youtu.be/FTi_KvzNEPs The HK51 is not a gun that was ever …

Dec 14, 2008 · Make a clone of a suppressor shrouding a full 16" barrel, or just go 51K pistol or SBR. Putting a can on a 51K? Does NOT work very well. Doesn't work well as in suppression, or cycling the action? OK, here it is in the beginning stage.

MC-51SD - This rifle used the same integral suppressor system as the MP5SD does. MC-51K - In the style of the MP5k, it has a very short barrel. Afghanistan: Iranian and Turkish-made G3s

May 29, 2019 · These are HK G3 rifles shortend down in barrel length considerably! It was designed as a short, highly manuverable rifle with good effect on Ballistic armour. Here is one kitted with our stock, MP5 forend and a converted Mp5 …

My new HK G3-SD / MC51-SD project rifle I saw a MP5SD on a movie recently and I thought to myself "Man, I wish I had one of those." I owned a HK MP5-22 SD which is the SD clone in 22lr with no suppressor in semiauto and loved it.

Oct 31, 2012 · 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! Anyone ever seen one, heard one? cloned one? odd beast. Did you shoot it? How loud was it? Flemming was one amazing builder.

Jan 27, 2022 · MC-51SD - This rifle used the same integral suppressor system as the MP5SD does. MC-51K - In the style of the MP5k, it has a very short barrel. Specialized G3 types. G3TGS - This is simply a G3 with a 40 mm HK79 under-barrel grenade launcher. TGS stands for Tragbares Granat System (portable grenade system).