QUARTER CIRCLE 10 REAR CHARGING GLOCK SMALL FRAME 9MM BUILDERS KIT

Picture of a Quarter Circle  Rear Charging CLT9MM Builders Kit QC-BK-GSF-PMUR-9
QUARTER CIRCLE 10 REAR CHARGING GLOCK SMALL FRAME 9MM BUILDERS KIT

Anyone here visiting this page have experience with the Quarter Circle 10 9mm AR hardware? If yes please send us a message.

Quarter Circle Rear Charging CLT9MM Builders Kit

QC-BK-GSF-PMUR-9

Quarter Circle 10, THE AR Pistol Caliber BRAND. Leader in top of the line, dedicated AR15 Pistol Caliber parts. Glock Small Frame 9x19mm Builders Kit

Specifications:

  • Builder’s Kit includes the “bones”- the core components for building your own Quarter Circle 10 Carbine or Pistol
  • QC10 Stripped Glock Small Frame Lower Receiver with proprietary parts

  • QC10 Billet Upper Receiver

  • 9x19mm barrel 5.5” or 7.5

  • G9 Bolt Assembly

  • QC10 Adjustable Buffer Kit
  • Made For the AR Platform- Not Modified

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MVB Industries AR-15 Pistol Caliber Billet Upper Receiver

Picture of a MVB Industries AR-15 Pistol Caliber Billet Upper Receiver

MVB Industries AR-15 Pistol Caliber Billet Upper Receiver

The MVB Industries AR-15 Pistol Caliber Billet Upper Receiver, Stripped, is the perfect platform for building your unique, mission-specific, 9mm, .45acp, 10mm and 40S&W AR-15 pistol caliber rifle/pistol. Made from a high-strength, 7075 T6 aluminum for durability. Mil-Spec, MIL-A-8625 Type III hardcoat anodized finish adds extra strength and delivers superior abrasion-resistance for rugged field use. Precision-machined to ensure drop-in installation of Mil-Spec, aftermarket components. Weight 7.8oz.

Will also work for .22 AR-15 rifles and pistols (AR-22)

Visit MVB Industries

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Rainier Arms AR-15 9MM Billet Receiver Set

Picture of a Rainier Arms AR-15 9MM Billet Receiver Set

Rainier Arms AR-15 9MM Billet Receiver Set

The Rainier Arms AR-15 9MM Billet Receiver Sets are CNC machined from solid billet 7075-T6 aluminum which is 70% stronger than the commonly used 6061 aluminum and finished with milspec hardcoat anodize to a surface hardness of 60 Rockwell. The precision machining of the Rainier Arms billets are well known in the industry. Rainier Arms AR-15 9MM Billet Receiver Sets utilize GLOCK® 9mm magazines.

Rainier Arms AR-15 9MM Billet Receiver Set Features

  • A4 Feed Ramps
  • 7075 Billet Aluminum
  • Upper and Lower are proprietary
  • Mil Spec Hardcoat Anodize
  • Threaded bolt catch screw
  • Threaded retainer screw for take down pin
  • Ambidextrous Bolt Release
  • Flared magwell
  • Compatible with short throw safety selector
  • Tensioning screw for proper upper and lower fit
  • Zinc-plated extractor and last round hold open lever
  • Last round bolt hold open on an empty magazine
  • Lower receiver accepts 9mm, .40 S&W and .357 SIG GLOCK® magazines
  • Slick side upper receiver with appropriately sized ejection port and no forward assist or dust cover
  • Accepts aftermarket Glock® 9mm double stack magazines. We recommend using factory Glock® magazines
  • Weight – Upper receiver 7.7oz Lower receiver 12.4 oz

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Stern Defense SD Mod 4 9mm AR-15 Upper Receiver

Picture of a Stern Defense SD Mod 4 9mm AR-15 Upper Receiver

Stern Defense SD Mod 4 9mm AR-15 Upper Receiver

I noticed the SD Mod 4 9mm AR-15 Upper Receiver on Brownells new product section so I spent a bit of time researching Stern Defense. I didn’t learn much. The only thing I was able to determine besides their contact information is that they are a pistol caliber AR-15 hardware manufacturer, and as regular visitors know we are big proponents of the platform. If anyone has feedback on the hardware or company please drop us a line!

The Stern Defense SD Mod 4 9mm Upper Receiver is a complete, ready to go, upper receiver solution for those looking to spend less time building and more time shooting.

The 4 inch, 1-10 twist, Melonite finish barrel, is free float in a 4in M-LOK handguard attached to a 7075-T6 forged aluminum receiver.
On the end of the barrel mounted on the ½-36 threads is a 1.75” long, 1.2” diameter blast can designed to direct the short barreled blast away from the shooter.

  • 4in barrel
  • 4in M-LOK Free Float handguard
  • Complete assembly with 9mm bolt and charging handle
  • ½-36 muzzle thread pitch
  • 1.75” long by 1.2” diameter blast can muzzle device
  • SD BU9 9mm Bolt
  • Cartridge: 9mm Nato

Included in the upper receiver is charging handle and the Stern Defense 9mm Bolt which is compatible with both Glock and Colt SMG magazines, has a Melonite finish, and is works in conjunction with the Law Tactical Folding Adapter. The Stern Defense SD Mod 4 9mm Upper Receiver is made in the U.S.A

Stern Defense 4 inch MLOK rail(Barrel nut, bolts etc.)
Stern Defense 4 inch 9mm barrel.
SD MBC 9MM Blast Can.
Stern Defense assembled upper receiver with dust cover and forward assist.
Stern Defense SD BU9 Glock cut bolt.
SD CH1 enhanced charging handle.

Handguard

The free float MLOK handguard from Stern Defense offers excellent ergonomics while remaining lightweight and strong. This handguard is MLOK compatible to accept your favorite attachments. Features a secure clamp on mounting system that ensures that the handguard remains in place even under heavy abuse, sustained full auto fire, and shooting prone from a bipod. Machined from 6061 aircraft grade aluminum and hard-coat anodized for longevity and durability. These handguards also feature quick disconnect swivel holes.  Also Included,  Barrel Nut and Bolts.

  • 6061 aircraft grade aluminum.
  • Hard-coat anodized.
  • Sturdy construction.
  • Lightweight construction.
  • Length 4 inches.
  • Smallest inside diameter 1.435 inches.
  • Made in U.S.A.

9mm Barrel

Stern 9mm barrels are ideal for gun lovers who want to build their own custom dedicated 9mm AR15 upper group. Our barrels offer an advantage over the competition. Every stern defense barrel throat is machined deeper for a longer free bore to accommodate bullets with a longer ogive. We have found that some common defense rounds jam into the rifling before the round is fully chambered. Some of the barrels on the market do not accommodate this and will potentially result in nasty malfunctions, resulting in a round being stuck in the chamber requiring manual methods to clear the malfunction.

Note: Barrel comes with locating pin installed.

  • Barrel length is measured in overall length from breech to muzzle.
  • Caliber: 9mm.
  • Length: 4 Inches.
  • Made in the U.S.A.
  • Threaded .5-36.
  • 1:10 TWIST.
  • 4150 Chrome-moly steel.
  • Melonite coating.

9mm Receiver

Mil-Spec flat top upper receiver with Stern Defense laser engraved dust cover and forward assist. Machined from 7075-t6 aluminum and hard-coat anodized. Mil-spec dry film lube in the bore.

  • 7075-t6 aluminum
  •  Hard-coat anodized.
  •  Sturdy construction.
  •  Made in U.S.A.

9mm Charging Handle


Mil-spec charge handle for AR-15 rifles.  Laser engraved with Stern Defense logo.  Our latch is  Ergonomically designed and provides a positive grip and easy one hand manipulations while charging your weapon under stressful situations. Made from 6061 aircraft grade aluminum billet and hardcoat anodized.

  • Laser engraved.
  • 6061 aircraft grade aluminum billet
  • Hard coat anodized.
  • Sturdy Construction.
  • Made in U.S.A.

9mm Specific Bolt

Made with 8620 AISI steel and boasting a Mag-Phosphate finish, the Stern bolt fits into Mil-Spec and Glock-pattern upper receivers.  It functions with Colt SMG, Glock magazines and it’s fully compatible with standard AR15/M16 charging handles. Comes fully assembled with all sub-components installed, including firing pin/spring/retaining pin, extractor, and extractor spring.   Also included in bolt assembly is a proprietary center and roll pins.  Our 9mm bolts incorporate our new bolt design which caters to single stage triggers with short resets.  It also allows use with the JP silent captured spring. This bolt is compatible with the Law Tactical folding stock and the Echo trigger.

  •     Made in U.S.A.
  •     Constructed from 8620 AISI steel.
  •     Custom 4140 billet extractor providing superior ejection.
  •     Glock cut.
  •     Coating: Mag-Phosphate
  •     Weight: 15.5 OZ with weight 13.3 OZ without..
  •     9mm
  •     Compatible with single stage short reset triggers.
  •     Compatible with the Law Folding Tactical Stock
  •     Compatible with the Echo trigger.
  •     Compatible with the JP Silent capture spring

9mm Blast Can

Designed to direct muzzle blast away from shooters. Which is especially helpful on short barreled rifles and pistols. Machined from 6061 aircraft grade aluminum billet and hardcoat anodized, 1.75 inches long and 1.2 inches in diameter.

Note:  Comes with crush washer.

  • 6061 aircraft grade aluminum.
  • Hard-coat anodized.
  • Sturdy construction.
  • Lightweight construction.
  • Made in U.S.A.
  • 9mm
  • Threaded .5-36

Visit Stern Defense

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PSA GEN4 AR9 16″ 9MM NITRIDE 1-10 13 5 LIGHTWEIGHT M-LOK RAILED UPPER

Picture of a PSA GEN4 16" 9MM NITRIDE 1/10 13.5" LIGHTWEIGHT M-LOK RAILED UPPER WITH BOLT CARRIER GROUP & CHARGING HANDLE - 5165449632

PSA GEN4 16" 9MM NITRIDE 1/10 13.5" LIGHTWEIGHT M-LOK RAILED UPPER WITH BOLT CARRIER GROUP & CHARGING HANDLE - 5165449632

The Palmetto State Armory Best Selling 9MM AR15 Upper Receiver Features

Barrel: 16″ chrome moly steel barrel, chambered in 9mm (9×19) with a 1/10 twist rate. The A2 profile barrel is nitride treated for durability and finished off with a Palmetto State Armory 13.5″ Lightweight M-Lok free-float rail and an A2 birdcage style flash hider.  The barrel is laser engraved with “9MM 1:10 PSA PCC CHAMBER” because it has been optimized for use in Pistol Caliber Carbine competitions.

Upper: Billet 6061-T6 A3 AR slick side upper is hard coat anodized black for durability.  These slick side upper receivers are made for us right here in the USA.

Bolt Carrier Group: Gen 4 Hybrid 9mm BCG.  Nitride treated 8620 steel bolt, with an enhanced firing pin and external 5.56 style ejector. The bolt carrier group is compatible with most aftermarket fire control groups.

To be used with Palmetto State Armory 9mm lowers that use either Colt® or Glock®-style magazines.

Each upper is assembled to order, and test fired to check function.

PSA GEN4 16″ 9MM NITRIDE 1/10 13.5″ LIGHTWEIGHT M-LOK RAILED UPPER WITH BOLT CARRIER GROUP & CHARGING HANDLE SPECIFICATIONS

SKU: 5165449632, UPC: 5165449632, MFR#: 5165449632

Barrel Length: 16″
Barrel Profile: A2 Style
Barrel Steel: Chrome Moly
Barrel Finish: NItride
Chrome Lining: No
Muzzle Thread: 1/2-36
Chamber: 9mm (9x19) “9MM 1:10 PSA PCC CHAMBER”
Twist Rate: 1 in 10″
Barrel Extension: 9mm
Muzzle Device: A2 Bird Cage Flash Hider
Receiver Material: Billet 6061 T6
Receiver Type: Slick Side
Handguard Type: PSA 13.5″ Lightweight M-Lok Free Float Rail
BCG Included: Yes (Gen-4 Hybrid)
Bolt Steel: 8620, Nitride
Charging Handle Included: Yes

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Angstadt Arms Jack 9 9mm AR-15 Receiver Set

Picture of an Angstadt Arms Jack 9 9mm AR-15 Receiver Set

Angstadt Arms Jack 9 9mm AR-15 Receiver Set

Certain to appeal to shooters who tend to like things geared towards the dark side is the Jack 9 by Angstadt Arms.  Angstadt Arms Jack 9 9mm AR-15 Receiver Set is a dedicated GLOCK® magazine fed 9mm AR-15 matched lower and upper receiver set that features Sharps Brothers iconic skull design. The Jack 9 Includes last round bolt hold open. The Jack 9 milled from billet aluminum, as opposed to using forged aluminum, allows a level of detail that can be difficult to achieve in standard firearms design. When you use Angstadt Arms products, you see why they hold their craftsmanship to such high standards. Each element is crisply defined, and everything you see and feel has taken an immense amount of consideration — down to the precise size, shape, and placement of every curve and intersection.

  • Iconic skull design lower receiver by Sharps Bros. Manufactured exclusively for Angstadt Arms
  • Last round bolt hold open on an empty magazine
  • Lower receiver accepts 9mm, .40 S&W and .357 SIG GLOCK® magazines
  • Integrated, oversized trigger guard
  • Machined from 7075-T6 billet aluminum with a matte black hard-coat anodized finish
  • Slick side upper receiver with appropriately sized ejection port and no forward assist or dust cover
  • Threaded bolt catch screw
  • For use with a 9mm bolt carrier assembly and a standard AR-15 hammer
  • Patent(s) pending
  • Accepts aftermarket Glock® 9mm double stack magazines. We recommend using factory Glock® magazines

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