New AR-9 Builds in 10.5'', 12.5'' & 16'' Uppers
New IUR/C8 9mm & 5.56mm, both in 10.5'' & 16"
New AR-9 Builds in 10.5'', 12.5'' & 16'' Uppers New IUR/C8 9mm & 5.56mm, both in 10.5'' & 16"
Precision-Engineering Military Replicas
Retro-Arms
We believe there is something real about owning a piece of history. We re-design, precision-engineer, and share those arms with those who share our passion.
60+ years in businesses, and we’re now on our 3rd generation of ownership. Our 40,000 sqft. shop in Connecticut recreates these great historical arms.
NEW PRODUCT: The IUR/C8 CQB clone is inspired by the original 2006 Colt Canada / Diemaco product. Limited to just 100 products, this is available in both 9mm and 5.56 calibers, both available in 10.5” and 16” barrels.
IUR Gas Blocks and Uppers are here!
This limited run started early 2026, and we are expected to have 100 done by Feb. 1st. Anodization, Magnesium phosphate for everything. Place your order now!
4+1 IUR/C8 Variations
10.5” barrel in 9mm caliber (25 units)
10.5” barrel in 5.56 caliber (25 units)
16” barrel in 9mm caliber (25 units)
16” barrel in 5.56 caliber (25 units)
IUR gas block (stand alone)
This run is limited to 100 total units.
LSW Clone Upper Receiver
Retro-Arms LSW Clone Upper Video Review
The LSW Basic Upper delivers rugged performance with a heavy A4 barrel (.750 FSP build) for sustained fire capability.
Outfitted with a Light Support Weapon (LSW) handguard and a TRI-AD rail on the front sight post, this upper provides a stable, modular platform for mounting accessories.
Designed for durability and reliability, it offers enhanced heat management and versatility for mission-ready applications.
About Retro-Arms
We believe there is something real about owning a piece of history. We re-design, precision-engineer, and share those arms with those who share our passion. 60+ years in businesses, and we’re now on our 3rd generation of ownership. Our 40,000 sqft. shop in Connecticut recreates these great historical arms.
Experience History Reimagined: Welcome To Retro-Arms
Cloning Timeless Legends For Modern Collectors
There's something undeniably captivating about holding a piece of history in your hands. At Retro-Arms, We believe the past deserves more than nostalgia, it should be celebrated, lived, and fired again. With our precision replicas, every time you pull the trigger, you're celebrating the rifles that shaped a whole generation. You'll notice the special design of the Retro Arms upper receivers and feel the perfect weight of a well-balanced handguard. We're making it exciting and fresh to own a true classic.
Meticulously Built For Purists And Performers
We're passionate about all the little details, making sure every piece meets the high standards of serious collectors and shooters. Looking for the popular RA 603-H upper receiver, the reliable M16A1 HB 606/SP1 upper, or want the flexible RA MARS Clone A4 upper? At Retro-Arms, you'll discover a fantastic selection made for real authenticity and lasting durability. Our Retro-style AR-15 uppers aren't just about that cool vintage look, they help you understand what true craftsmanship really feels like. We make it easy for you to get your hands on a piece of history that's not only for display, but actually built to last and to enjoy.
A Collection Where Every Upper Tells A Story
Check out our curated lineup and see iconic platforms. Looking for the tough style of the RA LSW Basic upper? Or maybe you want the smart, tactical feel of the RA LSW flat top upper receiver? Each model is engineered to offer reliability and performance without the risks of modern shortcuts. We take pride in building upper receivers that enthusiasts can trust, products like the Triangle handguard upper receiver or the Fixed carry handle upper (RA) will delight anyone seeking a genuine retro vibe.
American Craft, Driven By Legacy At Retro-Arms
At Retro-Arms, we're all about real American know-how. Our US-made AR-15 clone uppers aren't just put together, they're crafted with true pride and only the best local materials. When you pick a vintage AR-15 upper receiver from us, you're not just getting solid engineering, you're backing a tradition that celebrates classic military history right here at home. Every one of our mil-spec designs, especially the sturdy Heat-shielded LSW upper, is made to match the original details that true fans love. We care about every detail, just like you do!
Reborn For Excellence: Precision, Performance & Value In Legendary Rifles
Our mission is simple: bring legendary rifles back, make them accessible, and keep every detail honest. That's why collectors and shooters alike seek out our Retro Arms upper receivers for their builds, knowing each piece is a meticulous reflection of its source. We believe every home armory deserves the timeless appeal of the M16A1 HB 606/SP1 upper or the distinctive profile of the Triangle handguard upper receiver and we make that dream achievable.
Complete Your Collection, Relive The Legacy
We've got you covered, whether you want the reliable RA LSW flat top upper receiver or the super adaptable Retro-style AR-15 uppers, it's all here so you can build your collection just the way you want. Our Fixed carry handle upper (RA) and other special parts are made to last and deliver that real, classic feel. Explore the top-quality vintage AR-15 upper receivers by Retro Arms and get ready for something special. Let's enjoy history together!
Retro Arms IUR upper, chambered in 9mm; 10.5’’ barrel. Mounted to a Flat Top upper, All OEM US made small parts.
IUR Gas Block Made from US 4140 steel and 2 1.75’’ Rails in the 3 and 9 O'clock position, flip up sight. A thermoset OEM low dome Hand Guard is added for your connivence.
This upper is expected to ship some time at the end of February. By ordering you are pre ordering your item, helping us with the building of the IUR sales.