Description
Product Summary
US Palm Cat4 Storm 5.56 NATO 30+1 11.50″ Black Threaded Barrel, Matte Black Receiver w/Picatinny Rail, M-LOK Handguard, Adjustable Black Polymer Stock, Reduced Angle Grip, Ambidextrous
BrandUS Palm
CategoryTactical Rifles
SeriesStorm
ModelCat4
Caliber5.56 NATO
Barrel Length Range11″ to 11.99″
Gun PlatformAR-Style
Stock Finish GroupBlack
Capacity30+1
Stock MaterialPolymer
ActionSemi-Auto
Oal29″-32.30″
HandAmbidextrous
SightsNone
Barrel FinishBlack
Barrel MaterialChrome Moly Vanadium
MuzzleUS Palm Hurricane Flash Hider
Twist1:7″
Receiver DescriptionPicatinny Rail
GripsReduced Angle
HandguardsM-LOK
SafetyAmbidextrous
Thread Pattern1 / 2″x28
Stock DescriptionAdjustable
Barrel DescriptionThreaded
Barrel Length11.50″
Max Capacity30
Receiver FinishMatte Black
TriggerHyperfire EDT
Weight6 lbs
Stock FinishBlack
Caliber Dictionary
The Below Information Has Been Provided From Our Gun Caliber Dictionary And Is Meant For Informational Purposes Only. It Is Not Intended to Describe The Unique Specifications For This Ammunition.The 5.56X45mm NATO cartridge was designed by James Sullivan, a member of Eugene Stoner’s engineering team that developed both the M16 rifle and its original cartridge. The 5.56X45mm NATO was adopted by the U.S. military in 1964 and by NATO in 1980. With bullet diameter of .224-inch, the original M193 military cartridge used a 55-grain bullet at 3250 fps; the current M855A1 cartridge, developed by FN, uses a 62.5-grain bullet at 3020 fps, offering greater range and better penetration. The civilian version of the 5.56X45mm is 223 Remington; the cartridges are dimensionally identical but military chamber dimensions and specifications for military brass are different. It is considered safe to use 223 Remington ammo in a 5.56X45MM NATO chamber, but not a good idea to use 5.56X45mm ammo in a rifle specifically chambered for the 223 Remington. Although the stopping power of .22-caliber bullets remains controversial the 5.56X45mm has served well in now multiple generations of M16 rifles. — Craig Boddington
