
NIJ IV Alumina + UHMWPE Composite 10x12in Rigid Armor Plates - Set of 2
NIJ Level IV Alumina UHMWPE Composite Body Armor Plate Inserts
Plates measure approx. 10x12in
Hardened UHMWPE inserts protect the wearer from a wide variety of threats as well as the kinetic energy of incoming rounds which can be just as deadly.
The shooters cut provides range of movement and while protecting the wearer from incoming rounds.
Other forms of rigid armor plates are excellent at stopping bullets but can be susceptible to spalling or shattering which can injure the wearer and render the armor useless after being shot.
Soft armor can stop a bullet but the remaining force can still be enough to break bones or knock the wind out of the wearer, either of which can be fatal in a gunfight.
WHAT IS UHMWPE?
Ultra high molecular weight polyethylene also known as UHMWPE, High modulus polyethylene (HMPE), and by the brand names Dyneema and Spectra, is a flexible polyethylene variant with extremely long molecular chains which give the material its trademark strength and toughness.
UHMWPE is lighter than ceramic, steel, and fiberglass armor plates and is spalling and shatter resistant, a single plate can protect from multiple impacts and it will not rust under any conditions
UHMWPE is also hydrophobic and abrasion resistant with a low friction coefficient and is resistant to many acids and solvents while still retaining its light weight and flexibility.
Ultra high molecular weight polyethylene has a higher impact strength than any other thermoplastic in the world and is the top of the line in flexible body armor
WHAT IS SPALLING?
Spalling (or fragmentation) in ballistic armor is when a round strikes a piece of hard armor and breaks apart sending bullet shards flying in random directions.
Spalling also describes when a piece of armor shatters on impact and pieces of the armor are driven into the wearer's body by the kinetic energy of the bullet.
Due to its extremely long molecular bonds UHMWPE distributes impact forces better than fiberglass, ceramic, or steel and is vastly more resistant to both spalling and shattering when struck by a projectile.
WHAT IS ALUMINA?
Alumina is aluminum oxide, an ultra hard crystalline of oxygen and aluminum used as a substitute for synthetic diamond and in high level body armor. The dense hexagonal lattice structure of oxygen and aluminum ions, when bonded into a ceramic creates an ultra-hard armor that provides maximum level protection at a fraction of the weight of steel.
Materials like aramid and UHMWPE derive their strength from their flexibility and ability to dissipate kinetic energy along a long molecular chain, alumina defeats incoming round by sheer hardness and density. With Alumina/UHMWPE composite plates, this vest provides the protection to stop rifle rounds from penetrating, and absorb the potentially fatal impact force.
Certified at NIJ Level IV this vest is capable of stopping:
.22LR + WMR
.32 ACP
.38 SPECIAL
.380 ACP
.40 CAL
.357 SIG
.357 MAGNUM
.41 MAGNUM
.44 MAGNUM
.45 ACP
.45 LC
9MM
10MM
20 GAUGE 00 BUCKSHOT
20 GAUGE SLUG
12 GAUGE 00 BUCKSHOT
12 GAUGE SLUG
.223
5.56X45MM
7.62X39MM
7.62X51MM
7.62X54R
.30-06
And many others
To qualify for the NIJ rating level IV a plate must be able to stop a round of .30-06 M2AP armor piercing ammunition at 2,880fps.