AR-9 / AR-45 / AR-40 / 10MM

Based on popular demand, Moriarti Armaments is now offering AR-9,  AR-45 , 10mm, and AR-40 rifles, pistols, build kits and accessories.  Choose pre-build options carefully selected from top notch US Manufacturers or build your own desired rifle.

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  • AR 10MM 16" Side Charging LRBHO Complete Upper Assembly with BCG – 10mm
    AR 10MM 16" Pistol Caliber Side Charging Complete Upper – 10mm IS BUILD ON A NON RECIPROCATING SIDE CHARGING BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).  WEIGHT: 4.2 LB 16" 10MM LRBHO UPPER FEATURES: BARREL - 16" 10MM MATCH GRADE AR BARREL. 4150 CROMOLY ..
    AR 10MM 16" Pistol Caliber Side Charging Complete Upper – 10mm ...
    $599.95$624.95
  • AR 10MM 16" SLICK SIDE LRBHO PREMIUM COMPLETE M-LOK UPPER ASSEMBLY
    AR 10MM 16" 'SLICK SIDE' PREMIUM COMPLETE M-LOK UPPER RECEIVER IS BUILD ON A SLICK SIDE BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).   16" 10MM LRBHO UPPER FEATURES: BARREL - 16" 10MM MATCH GRADE AR BARREL. 4150 CROMOLY STEEL. BLACK NITRIDE FINISH. CHAMBE..
    AR 10MM 16" 'SLICK SIDE' PREMIUM COMPLETE M-LOK UPPER RECEIVER ...
    $499.95$599.99
  • AR 10MM 4″ LRBHO  “Slick Side” Complete Upper W/ BCG and CH – 10mm
    AR 10MM 4″ Pistol Caliber Side Charging LRBHO Complete Upper with BCG – 10mm IS BUILD ON A NON RECIPROCATING LAST ROUND BOLT HOLD OPEN BILLET UPPER RECEIVER.  WEIGHT: 3.2 LB 4" 10MM LRBHO UPPER FEATURES: BARREL - 4" 10MM MATCH GRADE AR BARREL. 4150 CROMOLY STEEL. BLACK NIT..
    AR 10MM 4″ Pistol Caliber Side Charging LRBHO Complete Upper with B...
    $449.95$499.95
  • AR 10MM 4″ Pistol Caliber Side Charging LRBHO Complete Upper with BCG – 10mm
    AR 10MM 4″ Pistol Caliber Side Charging LRBHO Complete Upper with BCG – 10mm IS BUILD ON A NON RECIPROCATING SIDE CHARGING BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).  WEIGHT: 3.2 LB 4" 10MM LRBHO UPPER FEATURES: BARREL - 4" 10MM MATCH GRADE AR BARREL. 4..
    AR 10MM 4″ Pistol Caliber Side Charging LRBHO Complete Upper with B...
    $499.95$599.95
  • AR 10mm 8" LRBHO "SLICK SIDE" PREMIUM CONE KEYMOD PISTOL KIT
    AR 10mm 8" LRBHO "SLICK SIDE" PREMIUM CONE KEYMOD PISTOL KIT IS BUILD ON A SLICK SIDE BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).  KIT COMES WITH EVERYTHING YOU NEED TO COMPLETE YOUR 10mm BUILD EXCEPT LOWER RECEIVER, CAN BE PURCHASED SEPARATELY. This kit is co..
    AR 10mm 8" LRBHO "SLICK SIDE" PREMIUM CONE KEYMOD PISTOL KIT I...
    $599.95$759.99
  • AR 10MM 8" SLICK SIDE LRBHO PREMIUM COMPLETE UPPER ASSEMBLY
    AR 10MM 8" 'SLICK SIDE' PREMIUM COMPLETE UPPER RECEIVER IS BUILD ON A SLICK SIDE BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).   8" 10MM LRBHO UPPER FEATURES: BARREL - 8" 10MM MATCH GRADE AR BARREL. 4150 CROMOLY STEEL. BLACK NITRIDE FINISH. CHAMBERED IN 10..
    AR 10MM 8" 'SLICK SIDE' PREMIUM COMPLETE UPPER RECEIVER IS BUI...
    $449.95$599.99
  • AR 10MM 8″ Pistol Caliber Side Charging LRBHO Complete Upper with BCG – 10mm
    AR 10MM 8″ Pistol Caliber Side Charging LRBHO Complete Upper with BCG – 10mm IS BUILD ON A NON RECIPROCATING SIDE CHARGING BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).   8" 10MM LRBHO UPPER FEATURES: BARREL - 8" 10MM MATCH GRADE AR BARREL. 4150 CROMOLY ST..
    AR 10MM 8″ Pistol Caliber Side Charging LRBHO Complete Upper with B...
    $549.95$599.95
  • AR 9 NITRIDE HYBRID BOLT CARRIER GROUP  COMPLETE BCG
    AR 9 NITRIDE HYBRID BOLT CARRIER GROUP  COMPLETE BCG. Compatable with 9mm Conversion Kits and  9mm billet lowers that accept GLOCK®-style magazines.MIL-SPEC 8620 SteelExternal ExtractorDust Cover CompatibleTotal Weight : 14.9 OuncesUSA MadeFully Heat TreatedQPQ Salt Bath Nitride ..
    AR 9 NITRIDE HYBRID BOLT CARRIER GROUP  COMPLETE BCG. Com...
    $149.95
  • AR-40 .40 S&W / 10mm Bolt Carrier Group – BCG (Glock Compatible)
    AR-40 .40 S&W / 10mm Bolt Carrier Group – BCG (Glock Compatible)Model: AR-40 Standard .40 S&W BCG (Glock Compatible)Caliber: .40 cal / 10mmWeight: 14.3 ozAR-40 .40 S&W / 10mm Bolt Carrier Group – BCG (Glock Compatible)US Made 8620 steel with mag phosphate finishRamped..
    AR-40 .40 S&W / 10mm Bolt Carrier Group – BCG (Glock Compatible...
    $149.95
  • AR-40 4" 'SLICK SIDE' PISTOL UPPER  WITH FLASH CAN, BCG AND CHARGING HANDLE - .40 S&W
    AR-40 4" 'SLICK SIDE' PISTOL UPPER  WITH FLASH CAN, BCG AND CHARGING HANDLE - .40 S&W. THIS UPPER IS BUILD ON SLICK SIDE BILLET UPPER RECEIVER.  This is a perfect upper to use on your MA-9 Glock Style lower - get two guns for the price of one!Barrel Length: 4" Barrel..
    AR-40 4" 'SLICK SIDE' PISTOL UPPER  WITH FLASH CAN, BCG AND C...
    $424.95$499.95
  • AR-40 8" Side Charging LRBHO Pistol Cal Complete Upper Assembly with BCG - .40 S&W - Make It A Complete Kit
    AR-40 8" Side Charging LRBHO Pistol Cal Complete Upper Assembly with BCG - .40 S&W IS BUILD ON A NON RECIPROCATING SIDE CHARGING BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).  This upper is a perfect addition to your MA-9 Glock Style lower receiver. Two guns for t..
    AR-40 8" Side Charging LRBHO Pistol Cal Complete Upper Assembly wit...
    $569.95$599.95
  • AR-45 .45 ACP 16" "SLICK SIDE" LIGHTWEIGHT KEYMOD UPPER HALF WITH RAMPED BCG AND CHARGING HANDLE
    AR-45 .45 ACP 16" "SLICK SIDE" LIGHTWEIGHT KEYMOD UPPER HALF WITH RAMPED BCG AND CHARGING HANDLE. THIS UPPER IS BUILD ON SLICK SIDE BILLET UPPER RECEIVER - NON LRBHO. CA COMPLIANT.FEATURES:BARREL - 16" 45 ACP MATCH GRADE AR BARREL. 4150 CROMOLY STEEL. BLACK NITRIDE FINISH. CHAMBERED..
    AR-45 .45 ACP 16" "SLICK SIDE" LIGHTWEIGHT KEYMOD UPPER HALF WITH R...
    $449.95$549.95
  • AR-45 .45 ACP 8" LRBHO "SLICK SIDE" CONE PISTOL UPPER HALF WITH RAMPED BCG AND CHARGING HANDLE
    AR-45 .45 ACP 8" LRBHO "SLICK SIDE" CONE PISTOL UPPER HALF WITH RAMPED BCG AND CHARGING HANDLE. THIS UPPER IS BUILD ON SLICK SIDE BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).  FEATURES:BARREL - 8" 45 ACP MATCH GRADE AR BARREL. 4150 CROMOLY STEEL. BL..
    AR-45 .45 ACP 8" LRBHO "SLICK SIDE" CONE PISTOL UPPER HALF WITH RA...
    $499.95$599.95
  • AR-45 .45 ACP 8" LRBHO "SLICK SIDE" PREMIUM CONE KEYMOD PISTOL KIT
    AR-45 .45 ACP 8" LRBHO "SLICK SIDE" PREMIUM CONE PISTOL KIT IS BUILD ON A SLICK SIDE BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).  KIT COMES WITH EVERYTHING YOU NEED TO COMPLETE YOUR AR-45 BUILD EXCEPT LOWER RECEIVER, CAN BE PURCHASED SEPARATELY. AR-45 LRBHO KIT..
    AR-45 .45 ACP 8" LRBHO "SLICK SIDE" PREMIUM CONE PISTOL KIT IS BUI...
    $649.95$759.99
  • AR-45 .45 ACP 8" LRBHO "SLICK SIDE" TACTICAL UPPER HALF WITH BCG AND CHARGING HANDLE
    AR-45 .45 ACP 8" LRBHO "SLICK SIDE" TACTICAL UPPER HALF WITH BCG AND CHARGING HANDLE. THIS UPPER IS BUILD ON SLICK SIDE BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).  FEATURES:BARREL - 8" 45 ACP MATCH GRADE AR BARREL. 4150 CROMOLY STEEL. BLACK NI..
    AR-45 .45 ACP 8" LRBHO "SLICK SIDE" TACTICAL UPPER HALF WITH ...
    $439.95$549.95
  • AR-45 .45 ACP 8" LRBHO SIDE CHARGING UPPER WITH BCG
    AR-45 .45 ACP 8" LRBHO SIDE CHARGING UPPER WITH BCG. THIS UPPER IS BUILD ON SIDE CHARGING BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).  FEATURES:BARREL - 8" 45 ACP MATCH GRADE AR BARREL. 4150 CROMOLY STEEL. BLACK NITRIDE FINISH. CHAMBERED IN 45 ACP. ..
    AR-45 .45 ACP 8" LRBHO SIDE CHARGING UPPER WITH BCG. THIS UPPE...
    $549.95$599.95
  • AR-45 16" Side Charging LRBHO Complete Upper Assembly with BCG - .45 ACP
    AR-45 16" Side Charging LRBHO Complete Upper Assembly with BCG  IS BUILD ON A NON RECIPROCATING SIDE CHARGING BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).  WEIGHT: 4.2 LB 16" AR-45 LRBHO UPPER FEATURES: BARREL - 16" .45 acp MATCH GRADE AR BARREL. 415..
    AR-45 16" Side Charging LRBHO Complete Upper Assembly with BCG ...
    $599.95$624.95
  • AR-45 4" Side Charging LRBHO Pistol Complete Upper Assembly with BCG - .45 ACP
    AR-45 4" Side Charging LRBHO Pistol Cal Complete Upper Assembly with BCG - .45 ACP  IS BUILD ON A NON RECIPROCATING SIDE CHARGING BILLET UPPER RECEIVER WITH LRBHO (LAST ROUND BOLT HOLD OPEN).  WEIGHT: 4.2 LB 4" AR-45 LRBHO UPPER FEATURES: BARREL - 4" .45 ACP MATCH GRA..
    AR-45 4" Side Charging LRBHO Pistol Cal Complete Upper Assembly wit...
    $549.95$599.95
  • AR-45 80% Billet Lower Receiver — Glock Style
    AR-45 80% Billet Lower Receiver — Glock Style Manufacturer: New Frontier ArmoryModel: C-45 80% LowerType: AR-45 80% Lower Receiver — milled from 7075 T6 aircraft grade aluminum billetsCaliber: .45 ACP and 10MMMagazine: Accepts any Glock style large frame pistol cal..
    AR-45 80% Billet Lower Receiver — Glock Style Manufacturer:&nb...
    $129.99
  • AR-45 CMMG GUARD MKG-45 DRB 45ACP 16" 13RD
    AR-45 CMMG GUARD MKG-45 DRB 45ACP 16" 13RD CMMG, MkG-45 Guard DRB, Semi Automatic, 45 ACP, 16" Barrel, 1:16 Twist, Black Finish, Magpul MOE Pistol Grip, Magpul CTR Stock, 13Rd, CMMG RKM14 Handguard, CMMG SV Muzzle BrakePRODUCT SPECIFICATIONSUPC Code: 815835018768Manufacturer: CMMGManufa..
    AR-45 CMMG GUARD MKG-45 DRB 45ACP 16" 13RD CMMG, MkG-45 Guard DR...
    $1,350.00
  • AR-45 Complete Billet Lower Receiver — Glock Style Mags
    AR-45 Complete Billet Lower Receiver — Glock Style Mags Manufacturer: New Frontier ArmoryModel: AR-45 Billet Lower ReceiverType: AR-45 Complete Lower Receiver — milled from 7075 T6 aircraft grade aluminum billetsCaliber: MultiMagazine: Accepts any Glock style ..
    AR-45 Complete Billet Lower Receiver — Glock Style Mags Manufa...
    $329.99
  • AR-45 Pistol Billet Lower Receiver — Glock Style Mags
    AR-45 Pistol Billet Lower Receiver — Glock Style Mags Manufacturer: New Frontier ArmoryModel: AR-45 Billet Lower ReceiverType: AR-45 Complete Lower Receiver — milled from 7075 T6 aircraft grade aluminum billetsCaliber: MultiMagazine: Accepts any Glock sty..
    AR-45 Pistol Billet Lower Receiver — Glock Style Mags Man...
    $399.99
  • AR-45 Stripped Billet Lower Receiver — Glock Mags
    AR-45 Stripped Billet Lower Receiver — Glock MagsManufacturer: New Frontier ArmoryModel: C-45Type: AR-45 Stripped Lower Receiver — milled from 7075 T6 aircraft grade aluminum billetsCaliber: Multi (will accept .45/10mm, and other Glock large frame caliber magazines)Magazine: Acce..
    AR-45 Stripped Billet Lower Receiver — Glock MagsManufacturer: ...
    $169.99
  • AR-9 16" HEAVY BARREL, 1:10 TWIST, 9MM, 416R STAINLESS STEEL
    AR-9 16" HEAVY BARREL, 1:10 TWIST, 9MM, 416R STAINLESS STEELLength: 16"Weight: 1lbProfile: HeavyTwist: 1:10Finish: StainlessMaterial: 416R Stainless SteelThread Pitch: 1/2x36Caliber: 9mmFeed Ramp: Non RampedFlutes: NoGas System: CarbineGas Block: .750Gas Hole Diameter: NoMade in USA ..
    AR-9 16" HEAVY BARREL, 1:10 TWIST, 9MM, 416R STAINLESS STEELLength:...
    $149.95
  • AR-9 16" M4 CONTOUR BARREL, 1:10 TWIST, 9MM, 4150 BLACK NITRIDE
    AR-9 16" M4 CONTOUR BARREL, 1:10 TWIST, 9MM, 4150 BLACK NITRIDELength: 16"Weight: 1lbProfile: M4Twist: 1:10Finish: Black NitrideMaterial: 4150 CMVlThread Pitch: 1/2x36Caliber: 9mmFeed Ramp: Non RampedFlutes: NoGas System: CarbineGas Block: .750Gas Hole Diameter: NoMade in USA ..
    AR-9 16" M4 CONTOUR BARREL, 1:10 TWIST, 9MM, 4150 BLACK NITRIDELeng...
    $129.95