Geissele Super Duty Stripped Lower Receiver Build Kit, BLK 5.56 mil spec

a Charlie's exclusive - build your own Super Duty Complete Lower Receiver

Charlie's brings you a Super Duty black stripped lower receiver direct from Geissele, and parts to build your own complete Geissele lower receiver.  Charlie's believes in bringing you choices:  choices in how you configure your AR system, how you shoot, and choices in price points.

Build from 100% Geissele lower part kits and Geissele trigger kits, and a mil-spec military grade 6-position buffer tube, castle nut and end-plate, and then add on a Geissele buffer and spring kit, and you are good to go.

Lower Receiver

The Geissele stripped lower receiver is made from mil-spec forging, Geissele has precision engineered this lower receiver with the best equipment in Pennsylvania. Made from a 7075 T6 aluminum forging, is precision machined and quality assured to the mil-spec standard at the Geissele facility. The Super Duty stripped lower is the heart of your next build, ready to accept your favorite components to make your next AR15-pattern rifle truly your own.

Lower Parts

The lower parts kit is a Tier-1 military grade Geissele sourced mil-spec lower parts kit without fire control. 

Trigger Selection

From there, you add your choice of a Geissele ALG QMS single-stage trigger, or the Geissele G2S two-stage trigger.  The Geissele ALG QMS is a top-quality sourced military grade mil-spec trigger system. The Geissele G2S two-stage trigger is the same trigger as the Geissele SSA trigger without all the bells and whistles of laser marking.  "The G2S is manufactured from the same tool steel as the SSA and the sears are also wire EDM cut. Visually, from the outside of the weapon there is no difference from the SSA and the feel and reliability is the same. The G2S however has a different way of holding the hammer pin in place..."  (from Geissele's description of the G2S).  

Geissele Braided Spring and Buffer

The buffer and spring is a Geissele H2 buffer and spring system, know at the Super 42 braided wire spring and H2 buffer combo.  The H2 is the more versatile of buffers, providing you the heavy weight needed in 14.5" and shorter carbine and mid-length gas system M4s and AR15s.  Some carbine and pistol setup may need the extra weight of an H3, especially if shot suppressed or with ultra short barrels.  Carbine and Mid-Length gas systems with barrels of 16" and greater may benefit from a lighter weight buffer.  You can ask Charlie's team members for a suitable replacement if you will be using a barrel longer than 16".

Charlie's recommends adding a one tungsten weight to make your H2 an H3, You can add military grade tungsten buffer weights by clicking the highlighted link.

Kit includes:

• Geissele Super Duty Stripped Lower Receiver, Black, in factory box
• Geissele Super 42 Braided Wire Buffer Spring and Buffer Combo, H2 in factory tube
• Geissele mil-spec lower parts kit, without fire control in factory plastic zip lock bag and factory part label
• Geissele trigger:  your choice of ALG QMS Single Stage or the G2S 2-stage trigger
• Military grade mil-spec 6-position or 4 position buffer tube (depending upon available supplier), forged and anodized black
• Mil-spec end plate and castle nut
• No grip is included, see below options to add your choice
• CAN BE USED TO BUILD AN AR PISTOL, where legal
• Swag:  Geissele swag and Charlie's swag kit

Upgrade Options:

• Add a Geissele Maritime Bolt Catch
• Add a B5 Systems Bravo Stock
• Add a B5 Systems Polymer Trigger Guard
• Add a B5 Systems Type 23 grip
• Add a mil-spec A2 grip in black
• Add a mil-spec A2 grip in Taupe / FDE
• Add a mil-spec A2 grip in Taupe / Coyote Brown
• Add a Magpul QD endplate
• Add a CQD CQBR sling mount endplate
• Add a Tungsten weight for your buffer if you need an H3 buffer

photos courtesy of Geissele, Potomac Armory and RecoilWeb

Buying and shipping through Charlie’s is easy, but there is some information you need to know. This item must ship to FFL holder. No civilian exceptions.

       1)  Check your state laws to make sure the federally regulated item you want to purchase is legal in your state.

       2)  Find your FFL… Have your dealer send us a copy of their FFL to Charlie’s (Make them earn their fee!!!)

       3)  Be patient! You should hear from our compliance department within 3-4 business days. If not, feel free to reach out for a status update.

California residents must purchase a California Firearms Compliance Service kit by clicking the link and adding.

That’s it! We try to make this process as simple as possible for our customers. Please click the “Buying a Firearm” tab at the top of this page for more information.