Am I right, fellows?
Lyrics Abstract: [ The light of justice ]
[ illuminates the entire ground ]
[ make all the dark places... ]
M4 rifle, since it was first served in the army
has been through a lot of combat experiences in Iraq, Afghanistan, and Syria
and developed into a lot of variants
Before the final release of the next generation of personal weapon
it is still the veteran level firearm of the U.S. Army
Last year, The United States Army Special Operations Command (USASOC) can't wait anymore, again
because of the new high power ammunition, and the new combat requirement, some reasons like that
They decided to upgrade the recent M4A1 Block II
Improve the entire upper receiver set, including the enhanced gas block and the handguard
which is also known as URG-I
Upper Receiver Group Improved
The major difference between this receiver set and Block II
is the use of MK16 handguard from Geissele
Last year, in October, China Toy Expo in Shanghai
Kublai displayed their K5 gel blaster
which is based on URG-I full assembly gun
Just like Sijun who released one week ago
K5 also has the blowback and bolt catch function
Triple price point with the same function
K5 is really the "upper level" blaster in the myth?
Just like the K series before
Kublai expresses K5's featured function on the box
a huge bolt release is shown on the cover
I have to say, I have a strong sense of ceremony every time I open Kublai's box
it might be the root of the evil but attractive consumerism
Inside the box, there is a battery, a charger
and a Magpul magazine made by Kublai
Pretty solid case
the outer look is the same as Jingji's mag with the indicator window
The power connector is the same plate structure as K4
it said the feeding issue has been fixed and improved here
The manual shows that K5 has another version L
which uses the 13.5-inch handguard
but the one I got here is the short version which uses the 9.5-inch handguard in DDC color
The entire weight goes over 2kg
pretty similar to Sijun's M4
but K5's weight is more balanced without any added weight
the material is solid enough
There is an outstanding change on K5's receiver
which is the receiver marking is finally simulated
But the problem of big tummy receiver
I assume it is a compromise for the thick bolt cover
On the top rail, there is a pair of metal KAC iron sight
nice quality, fully adjustable
the Geissele charging handle could be pulled on both sides
a bit wobbling when pulling out
40mm action, the white inscription on the top
The dark grey dust cover will open when pulling the charging handle
and you can see Kublai's special stereo bolt cover
aluminum alloy, it looks beautiful after polishing
Just like Sijun, K5's bolt catch action is also about 40mm
but attention here, K5's charging handle will not move back after manually locking the bolt
which simulates the structure of the real steel AR
Press the bolt release on the right
the crispy sound of the metal collision of the bolt cover and the charging handle
it feels more realistic compared to Sijun's
Only this sound will make me so comfortable
The bolt release is also the Geissele type
you can just spank the receiver to release the bolt
I could literally play this for a year
The ambidextrous fire selector is a standard set since K2S
The position is clear
the right side one is a bit stiff
A huge letter G on the competition trigger
beautiful and fancy, the trigger force is appropriate
The trigger guard didn't use the Geissele type, a little pity
On the left side of the mag well, Geissele Automatics is engraved on it
the font is clear, the independent serial number is underneath
All small parts on the receiver are made of metal
the surface finish keeps Kublai's high quality as usual
Based on its advertisement, K5's receiver has been fully improved
and enhance the durability of the material
it should be the top-level work of the current AR receivers for gel blasters
The SOPMOD Bravo buttstock that K5 uses
is the improved version based on LMT SOPMOD, which is also known as "Navy Buttstock"
This is the first replica for gel blasters of this type of buttstock
Compared to navy stock, B5 looks thinner but more solid
a rubber cover at the back
but it doesn't have accessory boxes on each side like navy stock
Classic aluminum alloy buffer tube of Kublai
on the bottom, just like the K series before
there is a cap for the battery compartment
DDC color 9.5-inch MK16 handguard
oxidized sandblasted lacquer on the aluminum alloy surface
good texture of Geissele engraved on the side
The top rail is perfectly lined up with the receiver, with no height difference at all
Just like other Geissele handguards
there're screws on both sides of this MK16 for holding the position
M-Lok system on three dimensions except for the top rail
extra rail segments needed for other accessories
The outer barrel is Kublai's classic nylon barrel
the same material, the same feel
there is a ring spacer at the front so it won't wobble
14mm CCW thread
Surefire SF4P flash hider of URG-I is on it
but there's no black replacement in the box for the orange tip
but fortunately, I have a metal one in the same type, perfectly assembled
K5 gel blaster replicates the MK16 real steel with URG-I upper receiver and Geissele lower receiver
No more praise on its outer look, you know the quality of external performance from Kublai
I need to admit, K5 looks so nice when holding it in hands
However, it already used the whole set of Geissele
but the disadvantage of the trigger guard, gas block, those small but important details
which make it away from perfect
As another featured part
Kublai builds up the blowback function on their AR for the first time
40mm length of blowback action
it is stable when using the stock 7.4v battery
Compared to Sijun's, Kublai has a thicker bolt cover
the collision sound is more crispy
But when using the 11.1v battery, the bolt will mistakenly lock back due to the inertia
this is a big problem
The manufacture says they are working on this issue now
it should be improved with a stronger recoil spring and bolt
Take the pin out, the blowback system inside the receiver is clear
Unlike Sijun's design
the blowback track from Kublai is on the top of the cylinder
the aluminum alloy bolt cover is huge
it almost covers the entire upper part of the gearbox
In order to fit the blowback system
the charging handle is super short, looks amusing
so it is not interchangeable with others on the market
Similar to K4's upper receiver
metal thread is added on the front
the overall durability is qualified
the stock inner barrel is still acrylic
Hey, hey, hey
are you really going to say that?
you don't want your P4 anymore?
Due to the extra stress brought from the blowback system
Kublai uses the metal gear set for the first time
what a finally
Out of the box, about 60m/s velocity
exactly the same as shown on the box
what a safe shooting performance
The accessory of Geissele is famous on the gel blaster market
MK4, MK8, and MK16 handguard
lots of studios have replicated them recently
Except for the new B5 buttstock, Kublai didn't bring too many brand new accessories on this K5
the MK16 handguard is already released independently before
Its major featured point is the blowback system like Sijun
You can't deny that the blowback system from Kublai
has a better performance of the simulation
and the whole set of small metal parts is the standard of the K series as usual
with this hot MK16 handguard, K5 is pretty attractive at this point
From K1 to K5, you can notice Kublai is keeping improving and innovating their K series blaster
However, for its 1200RMB price (about 200USD)
there are still lots of rooms for improvement for K5's detail
As a representative of the upper-level AR blaster
I hope the K series will keep pursuing the perfect
to solidify its "upper" name
I've heard that the first batch of K5 has a lot of defective products
Kublai has suspended the release and fixed the problem
and provide the free reinforced parts for the buyer of the first batch
I actually have no problem with this one I got
maybe because I've received lots of defective stuff before, my luck is turning now
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At last, stay healthy, see you next time!