AR-15 350 Legend 10.5" Keymod Tactical Upper Assembly - The new 350 Legend is an upgrade to your standard AR-15 platform in pistol length. 350 offers a significant increase in velocity and energy without having to buy a specialty bolt. Supercharge your AR-15 in one easy step!

Features:

Barrel Length: 10.5"

Gas System: Pistol

Barrel Profile: M4 Contour

Barrel Steel: 4150 CMV

Barrel Finish: Parkerized

Muzzle Thread: 5/8x24

Twist Rate: 1/16

Feed Ramp: 300 Blackout

Diameter at Gas Block: .750

Gas Block Type: Steel low profile

Muzzle Device: A2 Flash Hider

Receiver Material: 7075-T6 Aluminum forging

Receiver Type: A3 Flat Top

Hand guard Type: 12" free float slim keymod rail 

Barrel: 10.5" 4150 CMV parkerized barrel with a 1:16" twist, pistol-length gas system and .750 low profile steel gas block. Barrel is finished off with a slim 12" keymod rail and a 5/8x24 thread flash hider. 

Upper:  A3 flat top upper receiver is made out of 7075-T6 aluminum forgings, black hard coat anodized and comes with a forward assist and ejection port cover installed. These uppers are made for us right here in the USA by a mil-spec manufacturer. Comes in anodized black.

Comes assembled and ready to mount to your lower receiver. Does not include AR-15 BCG and Charging Handle. 

This is a custom made upper. Please allow up to 7-10 business days for your upper to be built and to ship from our facility. Holiday and special sale lead times can be longer* If your order goes beyond the listed lead time, please get in contact with us via email and we will look into your issue. 

AR-15 .458 SOCOM Upper Build with 16" Barrel and 15" Keymod Super Slim Handguard. CA and NY compliant. This upper assembly features:

Action: Semi-auto

Gas System: Carbine Length Gas System

Chamber: .458 Socom

Twist Rate: 1/14

Muzzle Device: Thread 5/8x24 custom TPI competition

Barrel: KAK industries 16" 4150V steel, chrome moly, heat treated, black, Socom extention, .750 gas block diameter, carbine gas system

Handguard: Rifle-length Keymod Super Slim Free Float

.458 SOCOM Upper Receiver, Complete with Dust cover and Forward Assist

Does not come with BCG and Charging Handle. Can be purchased separately as add on option on top of page.

Made in the USA

Compatible with Mil Spec AR-15 Lower Receivers.    

AR-9 9MM 10.5" MINIMALIST SERIES GLOCK STYLE PISTOL/SIDE CHARGER/LRBHO.  THIS PISTOL IS BASED ON LAST ROUND BOLT HOLD OPEN UPPER RECEIVER. ACCEPTS GLOCK STYLE MAGAZINES. FFL TRANSFER ITEM. CURRENT ETA: 2-3 WEEKS

BARREL - 10.5" 4150 CMV STEEL GOVERNMENT PROFILE BARREL. HARDENED TO 26-32 RC AND STRESS RELIEVED.  CHAMBERED IN 9MM, 1-10 RH TWIST. THREADED 1/2X36. BARREL IS FINISHED OFF WITH SLIM REVERSE THREAD FLASH CAN SUPPRESSOR AND CRUSH WASHER.

BILLET SLICK SIDE UPPER RECEIVER WITH SIDE CHARGER - MADE FROM CERTIFIED 7075-T6 ALUMINUM BILLET. BLACK HARDCOAT ANODIZED COATED TO GOV. SPECS. LIGHTWEIGHT MODEL. DOES NOT REQURE FORWARD ASSIST. LRBHO.

GAS SYSTEM -  BLOWBACK

HANDGUARDS - FREE FLOATING SLIM KEYMOD, LIGHTWEIGHT. MADE FROM AIRCRAFT QUALITY ALUMINUM AND BLACK HARDCOAT ANODIZED. YOU HAVE AN OPTION TO CHOOSE RAIL DESIGN - KEYMOD, MLOK OR QUADRAIL. 

RAMPED 9MM BCG AND STANDARD BILLET AR-15 CHARGING HANDLE. 

STOCK: SB TACTICAL SBA3 3-POSITION ADJUSTABLE BRACE

LOWER RECEIVER: MA-9 GLOCK STYLE BILLET LOWER COMPLETED WITH MIL SPEC LPK,  

MAGAZINE: INCLUDED, CAPACITY DEPENDS ON STATE YOU ARE IN (EITHER 30RD OR 10RD)

WEIGHT: 5.5 LBS, STRIPPED

PLEASE NOTE: DOES NOT COME WITH SIGHTS. THERE MIGHT BE SOME VARIATIONS IN RAIL DESIGN, DEPENDING ON STOCK AVAILABILITY, SAME EXCELLENT QUALITY.

THIS ITEM MUST SHIP TO A FFL. PLEASE HAVE YOUR FFL EMAIL A SIGNED COPY TO US AT INFO@MORIARTIARMAMENTS.COM.  YOUR ORDER WILL NOT BE PROCESSED UNTIL WE HAVE THE COPY. PLEASE BE SURE THE FFL REFERENCES YOUR INVOICE NUMBER IN THE EMAIL, OR YOUR ORDER CANNOT BE PROCESSED. A SIGNED COPY OF OUR FFL WILL BE SENT WITH THE SHIPMENT. 

MA-9 MORIARTI ARMS 16" BATTLE M3 BILLET LRBHO GLOCK RIFLE W/ MAGPUL MOE STOCK. THIS RIFLE IS BUILD ON LRBHO AR-9 BILLET LOWER. 

BARREL - 16" 4150 CMV STEEL GOVERNMENT PROFILE BARREL. HARDENED TO 26-32 RC AND STRESS RELIEVED.  CHAMBERED IN 9MM, 1-10 RH TWIST. THREADED 1/2X36. BARREL IS FINISHED OFF WITH A2 FLASH HIDER AND CRUSH WASHER.

A3 SLICK SIDE UPPER RECEIVER - MADE FROM CERTIFIED 7075-T6 ALUMINUM FORGINGS. BLACK HARDCOAT ANODIZED COATED TO GOV. SPECS. LIGHTWEIGHT MODEL. DOES NOT REQUIRE FORWARD ASSIST AND DUST COVER.

GAS SYSTEM -  BLOWBACK

HANDGUARDS - FREE FLOATING SLIM KEYMOD, LIGHTWEIGHT. MADE FROM AIRCRAFT QUALITY ALUMINUM AND BLACK HARDCOAT ANODIZED.

RAMPED 9MM BCG AND MIL SPEC CHARGING HANDLE. 

STOCK: MAGPUL MOE IN BLACK WITH MIL SPEC 9MM BUFFER AND TUBE

LOWER RECEIVER: MA-9 GLOCK STYLE BILLET LOWER COMPLETED WITH MIL SPEC LPK, LRBHO

MAGAZINE: INCLUDED, CAPACITY DEPENDS ON STATE YOU ARE IN (EITHER 30RD OR 10RD)

WEIGHT: 6.8 LBS, STRIPPED

THIS ITEM MUST SHIP TO A FFL. PLEASE HAVE YOUR FFL EMAIL A SIGNED COPY TO US AT INFO@MORIARTIARMAMENTS.COM.  YOUR ORDER WILL NOT BE PROCESSED UNTIL WE HAVE THE COPY. PLEASE BE SURE THE FFL REFERENCES YOUR INVOICE NUMBER IN THE EMAIL. A SIGNED COPY OF OUR FFL WILL BE SENT WITH THE SHIPMENT. 

AR-15 COMPLETE PISTOL SHORTIE – 10.5 INCHES / 5.56 NATO / M-LOK RAIL / SBA3. FFL transfer item. Made in USA.

• Caliber: 5.56 NATO / 1x7 Twist
• Operating System: Gas Impingement System – Semi-Automatic
• Receiver: Moriarti A4 Type Flat Top Upper Receiver, dust cover and forward assist
• Receiver Material: Forged 7075 T6 Aircraft Aluminum with Aluminum Trigger Guard
• Receiver Finish: Hardcoat Black Anodize Finish
• Bolt Material: M16 Nitride MPI Tested
• Barrel: 10.5“ M4 Profile with A2 Flash Hider
• Barrel Material: 4150 Chrome Moly Vanadium with M4 Feed Ramps & Nitride Treated
• Lower Receiver: Anderson's Manufacturing forged AR15 lower
• Pistol brace: SB Tactical SBA3 5-position adjustable, dramatically enhances versatility
• Features minimalist design 
• RAIL: Slim 10” M-LOK
• GRIP: A2 standard
• Comes with AR-15 Mag (capacity depends on State)
• PISTOL Weight:  5 lbs. (2.13kg)
• Length: 22.5”(571.5mm)

AR-15 Moriarti Duo TakeDown Pistol Upper Assembly | 5.56 Nato and 300 Blk Complete Combo allows for easy and convenient way to interchange calibers without actually detaching receivers. Compatible with virtually any Mil-Spec pistol AR-15 lowers, this TakeDown Duo saves time and money by getting two calibers in one set.

Duo set includes (barrel length can be modified to preference thru selections on top of page)-

• Caliber Duo: AR-15 300 Blackout / AR-15 5.56 Nato
• Operating System: Gas Impingement System – Semi-Automatic
• Receiver: Moriarti A4 Type Flat Top Upper Receiver
• Receiver Material: Forged 7075 T6 Aircraft Aluminum with Aluminum Trigger Guard
• Receiver Finish: Hardcoat Black Anodize Finish
• Bolt Material: Carpenter 158 Steel, M16 
• Charging Handle: Included
• Barrel 1: 7.5“ 300 blk M4 Profile with Fluted Flash Can (You may select your preference on top of page)
• Barrel 2: 10.5" 5.56 Nato M4 Profile with FLuted Flash Can  (You may select your preference on top of page)
• Barrel Material: 4150 Chrome Moly Vanadium with M4 Feed Ramps & Nitride Treated
• Rail: Slim profile mlok rail (please note some variations of rail design maybe applied, based on stock availability, the same excellent quality)
• Barrels are equipped with LEO TakeDown barrel coupling system
• Features minimalist design