UPPER & LOWER RECEIVER

UPPER & LOWER RECEIVER — In Stock at Theglockswitchshop
Theglockswitchshop carries the full UPPER & LOWER RECEIVER lineup, including complete kits,
frames, and build components. If you’re searching for polymer 80% lower, polymer 80 lower, polymer 80 lower receiver, 80 polymer lower, this category lists every
upper & lower receiver part we stock — no out-of-stock listings, no drop-shipped placeholders.

What’s in this Category
This page covers upper & lower receiver components used by Glock-pattern builders. Most parts ship same-day
from US warehouses and are compatible with the upper & lower receiver jig system included in our
complete kits. For a turnkey build, browse the
Polymer 80 Complete Kit page or return to Theglockswitchshop for the
full catalog.

Compatibility & Build Notes
Most upper & lower receiver parts on this page fit Gen 3 Glock 17, 19, 22, 23, 26, and 27 slides.
Always confirm slide rail spacing before final assembly. The most common build mistake is
over-cutting the rear rail block — go slow with the included end mill, take 5 thou per pass,
and dry-fit between cuts.

Top UPPER & LOWER RECEIVER Products
Sig Sauer M400 / 516 Stripped Lower Receiver, 5 PackWilson Combat AR-15 Stripped Billet Lower Receiver, AnodizedAero Precision M4E1 Stripped AR-15 Lower Receiver, Special Edition: Tacoma Heritage, Black

Frequently Asked Questions
Are upper & lower receiver parts legal to ship?
Yes — 80% frames and build components ship to most US states without an FFL. Check your
state laws before ordering; a handful of states (CA, NJ, NY, WA) restrict 80% frames.

Do I need a jig to finish a upper & lower receiver frame?
The frame ships with a finishing jig that walks you through the 3 cuts and 2 holes
required. A drill press makes the job easier but a hand drill works.

What barrel and slide work with upper & lower receiver?
Any Gen 3 Glock-pattern slide and barrel fits. We sell pre-fit slide assemblies in our
Complete Kit listings so you don’t have to source parts piecemeal.

How long does a upper & lower receiver build take?
First-time builders finish in 2-4 hours. Experienced builders finish in under an hour. The
slowest step is jigging the rear rail block — take your time.nnTop Products in UPPER & LOWER RECEIVERAero Precision M4E1 Stripped AR-15 Lower Receiver, Special Edition: Tacoma Heritage, BlackSig Sauer M400 / 516 Stripped Lower Receiver, 5 PackWilson Combat AR-15 Stripped Billet Lower Receiver, AnodizedBrowse All Products