GOST
8 August 2015, 09:54
https://scontent-ord1-1.xx.fbcdn.net/hphotos-xap1/t31.0-8/11816341_843134765762629_6885982526266215954_o.jpg ?efg=eyJpIjoidCJ9
Photo by Crossfire
Quarter Circle 10 is a firearm manufacturer based out of Tucson, Arizona and Dripping Springs, Texas. Their specialty is pistol caliber AR15s. Their goal is to provide the highest quality Pistol Caliber AR Lower Receivers, bolts and barrels on the market. All of their items are made in-house on their CNC Machinery. They have several new products that will be coming soon.
Glock Small/Large Frame lowers
https://www.quartercircle10.com/wp-content/uploads/2015/02/Glock-Small-Frame-Lower-e1424276138299.jpg
These Lowers are Manufactured in their facility in Tucson, Arizona. They are CNC machined in house on their machines. They stand behind each and every lower they sell. Each lower comes with all proprietary parts installed.
*This lower is a stripped lower and will require a Mil-Spec Lower Parts Kit to complete*
11.5 oz
Last Round Bolt Hold Open
can be used with all Glock 9mm/.40/.357sig/.40GAP/.45GAP Small Frame Magazine
7075-T6 Aluminum
Mill-spec Receiver extension
Type III Hard Coat Anodizing
Billet Machined
Bullet Pictogram selector on both sides
Vltor-Matching Profile
Upper Receiver Tension Screw Slot (Screw Not Included)
Self-Centering Ejector
Glock Magazine release, No magazine modifications needed
Requires a bolt cut to match Glock Magazines
Side Charging Uppers
https://www.quartercircle10.com/wp-content/uploads/2015/08/20150805_113602.jpg
These upper features a non-reciprocating charging handle. This allows the operator to remain in the firing position while charging the firearm. You can easily pull the charging handle to the rear and active the bolt catch with one hand in one motion. This upper was designed around mil-spec standard and will accept any of our blow back bolt assemblies. This upper has an enlarged ejection port and will fire pistol calibers from 9mm to .45 ACP. Our upper has a trap door in the rear to keep dirt out of the upper and allow easy removal of the bolt from the receiver.
Glock Small Frame Range Test
https://www.youtube.com/watch?v=UD0094F-5Kc&feature=youtu.be
https://www.quartercircle10.com
Photo by Crossfire
Quarter Circle 10 is a firearm manufacturer based out of Tucson, Arizona and Dripping Springs, Texas. Their specialty is pistol caliber AR15s. Their goal is to provide the highest quality Pistol Caliber AR Lower Receivers, bolts and barrels on the market. All of their items are made in-house on their CNC Machinery. They have several new products that will be coming soon.
Glock Small/Large Frame lowers
https://www.quartercircle10.com/wp-content/uploads/2015/02/Glock-Small-Frame-Lower-e1424276138299.jpg
These Lowers are Manufactured in their facility in Tucson, Arizona. They are CNC machined in house on their machines. They stand behind each and every lower they sell. Each lower comes with all proprietary parts installed.
*This lower is a stripped lower and will require a Mil-Spec Lower Parts Kit to complete*
11.5 oz
Last Round Bolt Hold Open
can be used with all Glock 9mm/.40/.357sig/.40GAP/.45GAP Small Frame Magazine
7075-T6 Aluminum
Mill-spec Receiver extension
Type III Hard Coat Anodizing
Billet Machined
Bullet Pictogram selector on both sides
Vltor-Matching Profile
Upper Receiver Tension Screw Slot (Screw Not Included)
Self-Centering Ejector
Glock Magazine release, No magazine modifications needed
Requires a bolt cut to match Glock Magazines
Side Charging Uppers
https://www.quartercircle10.com/wp-content/uploads/2015/08/20150805_113602.jpg
These upper features a non-reciprocating charging handle. This allows the operator to remain in the firing position while charging the firearm. You can easily pull the charging handle to the rear and active the bolt catch with one hand in one motion. This upper was designed around mil-spec standard and will accept any of our blow back bolt assemblies. This upper has an enlarged ejection port and will fire pistol calibers from 9mm to .45 ACP. Our upper has a trap door in the rear to keep dirt out of the upper and allow easy removal of the bolt from the receiver.
Glock Small Frame Range Test
https://www.youtube.com/watch?v=UD0094F-5Kc&feature=youtu.be
https://www.quartercircle10.com