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Premium Custom Firearm Modifications & Flat-Rate Build Packages

Certified Glocksmith | AR Custom Builder | RTF3TX Gunsmithing | Red Dot Optic Certified

AGI service center

ar and glock

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San Antonio, TX · Flat-Rate OTD

Glocksmith Custom Builds

One flat out-the-door price on custom firearm modifications. No markups on parts, no hidden fees. You supply the parts — I supply the craftsmanship.

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Book Your Glock Build

All Glock builds performed at our San Antonio, TX shop. Contact us for a custom build spec sheet and trusted vendor links.

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San Antonio, TX

AR Custom Builds

Mil-spec assembly to full rifle upgrades — flat-rate out-the-door pricing, no markups on parts.

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Schedule AR Assembly

Flat-rate out-the-door pricingNo markups on partsAll work performed in San Antonio, TXBore sight & range test included

SBR Build Warning: Requires Form 1 / NFA approval before work can begin.

A static product shot showcasing a variety of modern firearm sights and optics, including

Standalone Service · San Antonio, TX

Red Dot Mounting (Standalone)

No build work — just mount and go.

Need your optic professionally mounted without a full build? Choose your option below. All work performed at our San Antonio, TX facility.

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Reserve Optic Mounting Slot

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