HM Defense Raider MC5 5.56 NATO AR-15 Semi Auto Pistol 9.5″ Barrel 30 Rounds Fre…

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The World First Integrally Machined Gas Block as Part of a Barrel
The HM Defense Raider MC5 is a direct gas impingement AR-15 style semi auto pistol chambered in the popular 5.56 NATO cartridge. The most interesting point on this pistol is the use of the HM Monobloc barrel which features a gas block that is integrally machined as part of the barrel. This eliminates the need to align the gas block. Also you will notice improved barrel harmonics which translates into better accuracy and dependable performance in severe conditions. This patented system will provide you with a truly unique shooting experience.
HM Defense Raider MC5 AR-15 Semi Auto Pistol (Matte Black) Specifications and Features:

HM Defense HMP15F-MB-556-C
Direct Gas Impingement System (Standard Right Hand Ejection)
5.56 NATO (Accepts .223 Remington)
9.5″ Barrel (4150 Chromoly)
1:8″ Twist Rate
HM Monobloc Barrel (Integrally Machined Gas Block)
Carbine Length Gas System
Match Grade Triple Honed and Button Rifled Barrel
Mil-Spec Raider M5 Forged 7075-T6 Aluminum Upper/Lower Receiver
Upper Receiver M4 Feed ramps and 1913 Picatinny Rail (Flat Top)
HM Defense 8.5″ Free Float M-LOK Hand Guard (6061-T6 Aluminum)
HM Defense M16 Bolt Carrier Group
Mil-Spec Trigger/Fire Control Group
Mil-Spec Charging Handle
Buffer Tube/Spring
Shockwave 2.0 Blade Adjustable Pistol Stabilizer
Enhanced Pistol Grip
30 Round Magazine
Trigger Guard
Dust Cover
CNC Machined Muzzle Device (Threaded 1/2×28)
HM Defense Custom End Plate with QD
Mil-Spec Type III Hard Coat Anodized Finish
Matte Black

For Suppressed applications the manufacturer recommends an H2 Buffer Weight (Sold Separately).
Here is the NRA’s interpretation of the latest ATF letter regarding the use and legality of pistol braces.
NRA Interpretation of Latest ATF Letter