QBZ-191 service rifle family

kickars

Junior Member
View attachment 64948
One interesting fact: the 208th Institute originally designed rails on all 4 sides of the handguard (probably similar to HK-416), but the PLA rejected this idea, hence the current design.
Just to add to the translation, it also says after trial, it proves the military was right about it. But it doesn’t say from which aspect the military is right or why the military didn’t want rails on all 4 sides. I guess when they say all 4 sides they mean full length rails. As far as we can see the current design does have rails on all 4 sides. It’s just the top side is the only side has a full length rail, whereas the other three sides have rails just long enough for the military requirement. But Imo the decision not to have full length rails on the other three sides is definitely not because of the the cost.
 

by78

General
Note the muzzle brake sticking out of the rucksack of the guy in the foreground (with facial bleeding), that looks like the new assault rifle. I think these are paratroopers.

50538111968_5bbf625aaf_o.jpg
 

LawLeadsToPeace

Senior Member
Staff member
Moderator - World Affairs
Registered Member
Just to add to the translation, it also says after trial, it proves the military was right about it. But it doesn’t say from which aspect the military is right or why the military didn’t want rails on all 4 sides. I guess when they say all 4 sides they mean full length rails. As far as we can see the current design does have rails on all 4 sides. It’s just the top side is the only side has a full length rail, whereas the other three sides have rails just long enough for the military requirement. But Imo the decision not to have full length rails on the other three sides is definitely not because of the the cost.
I believe a previous user already mentioned this, but I'll just repeat it anyway. While having a lot of rails is cool and can have a lot of Gucci attachments, it can add weight to the front of the rifle. That's why MLOK's and Keymod's exist: to give the user the ability to basically determine the weight and configuration of the rifle. I guess the military understood this via data and input from various trials.
 

EdgeOfEcho

Junior Member
Registered Member
I believe a previous user already mentioned this, but I'll just repeat it anyway. While having a lot of rails is cool and can have a lot of Gucci attachments, it can add weight to the front of the rifle. That's why MLOK's and Keymod's exist: to give the user the ability to basically determine the weight and configuration of the rifle. I guess the military understood this via data and input from various trials.
Exactly, couldn't have put it better myself.
Full quad rail makes the front end of the gun significantly heavier (it may be pretty difficult to believe, but adding 150g of extra weight on the front end of the gun just makes it so much more difficult to maneuver!). Furthermore, quad rails can cut hands open easily, unless you wear gloves (they also cut up gloves pretty good, if you are doing a lot of shoot - reload- shoot drills on a daily basis, you are gonna need to switch gloves very often when your gun has quad rails). Most countries are not longer going for the quad rails in their new rifle designs, more modular and lighters systems are preferred. After all, mlok or keymod like systems are lighter, more ergonomic, cheaper to make, and more versatile than quad rails.
 

taxiya

Brigadier
Registered Member
Exactly, couldn't have put it better myself.
Full quad rail makes the front end of the gun significantly heavier (it may be pretty difficult to believe, but adding 150g of extra weight on the front end of the gun just makes it so much more difficult to maneuver!). Furthermore, quad rails can cut hands open easily, unless you wear gloves (they also cut up gloves pretty good, if you are doing a lot of shoot - reload- shoot drills on a daily basis, you are gonna need to switch gloves very often when your gun has quad rails). Most countries are not longer going for the quad rails in their new rifle designs, more modular and lighters systems are preferred. After all, mlok or keymod like systems are lighter, more ergonomic, cheaper to make, and more versatile than quad rails.
I would vote that "cutting hand" is the most no-no to the full length design. Skin (even as thick as the palm) is very fragile (crispy like paper) at low temperature, got that experience from scuba diving, even unscrewing hard plastic knob of gas tank or anchor line can cut the hand easily.
 

taxiya

Brigadier
Registered Member
and what happened to this guy's head???
you can easily get cut in the wild. My limited military training in the university tells that soldiers are trained to get on the ground at any time even if there is full of small sharp rocks.
 
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