Ranger (GSF) Side Charging 9MM Builiders Kit

Out of stock


Quarter Circle 10, THE AR Pistol Caliber BRAND. Leader in top of the line, dedicated AR15 Pistol Caliber parts. 



Shipping & Returns

Shipping: All orders are shipped within 72 hours Monday -Thursday 6am - 4pm Arizona Time.

Any order containing a lower receiver will not be shipped until we receive a copy of your FFL. Once received regular shipping policies apply. Submit your FFL Here.

Returns: Quarter Circle 10 offers a 30 day return, refund and exchange policy. See Details.

The QC10 Builders kit is for the customer that realizes the importance of high quality matching core components.  The kit includes a QC10 lower and upper receiver with proprietary parts, a barrel of desired length with a patented bolt and an adjustable buffer assembly.  This represents the essential bones of a great pistol/carbine build and the reassurance that the parts contained within the kit are made for, not modified, the chosen pistol caliber.

  • Builder's Kit includes the "bones"- the core components for building your own Quarter Circle 10 Carbine or Pistol

  • QC10 Stripped Glock Small Frame (GSF) Lower Receiver with proprietary parts

  • QC10 Side Charging Upper Receiver

  • 9x19mm barrel in your choice of 5.5", 7.5", 10.5", or 16" length

  • Patented Universal 9MM Bolt Assembly

  • QC10 Adjustable Buffer Kit

  • Made For the AR Platform- Not Modified

  • **GIBBZ Arms Patented Left Side Charging Handle Pat. No. 9,310,146

Any orders containing lower receivers require a verified FFL dealer to make the transfer.

Lower receivers will not be shipped until QC10 has  your dealer's license on file.

Please contact your desired dealer about sending us a copy of  their license.

CALIFORNIA BUYERS: Please check with your transferring dealer before ordering. Many CA dealers are unwilling to process lower receiver transfers.

Important Warranty Note: 

If you intend to register your Quarter Circle 10 firearm as an NFA weapon, test it thoroughly before doing so in a Title 1 Configuration.  Once you Form 1 or Form 2 it, you are legally the manufacturer, and we cannot service the firearm.  Should your firearm require warranty replacement we can only replace it with a Title I receiver and we are not responsible for tax stamps or NFA fees.

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