12.5IN
SARC-6 barrel length
Quadradyn // Arms
The
Arsenal.
Purpose-built arms for shooters who value measured specifications over marketing shorthand. SARC-6 is the first 6mm ARC firearm sold to the public that runs Magpul PMAG 25 ICAR magazines—the same magazine architecture behind the rifle now carried by America's tier-one units. Our barrel and ammunition programs extend the same test-first discipline.
25RD
PMAG 25 ICAR capacity
3
SARC-6 configurations
07FFL
Type 07 // Class 2 SOT
First to the public
Firearm // 6mm ARC // ICAR-magazine compatible
SARC-6
A compact 12.5-inch 6mm ARC built on a Quadradyn-modified ICAR-pattern receiver set. Choose a stainless barrel with clamp-on adjustable gas for accuracy, a CMV barrel with set-screw gas and a thick-rim bolt for hard use, or the Duraveil-finished Spec-Ops, offered in limited quantities.
From $1,950
In stock // 1–3 weeks
Configure SARC-6 →
Coming soon
Component // 6mm ARC // QMB-6
6 ARC Barrel
The 12.5-inch, 1:7-twist barrel developed for SARC-6, offered on its own in heavy-profile 416R stainless or 4140 chrome-moly vanadium. Built around controlled dimensions, repeatable assembly, and documented inspection.
TBD
Coming soon
Barrel details →
Out of stock
Ammunition // 8.6 BLK // Subsonic
8.6 BLK Subsonic
A 300-grain 8.6 Blackout subsonic load, hand loaded in new brass over magnum primers with every charge weighed and verified, and every lot chronographed. Provisional pricing $89 per 20-round box.
$89/ 20 RD
Out of stock
Load details →
SARC-6 Configurations Side by Side
SEC.02 // COMPARE| SPEC | Stainless | CMV | Spec-Ops |
|---|---|---|---|
| Role | Maximum accuracy | Hard use, sustained fire | Special operations, signature-managed |
| Price | $1,950 | $1,950 | $2,399 |
| Availability | In stock // 1–3 weeks | In stock // 1–3 weeks | Limited quantities // special order if not in stock |
| Chambering | 6mm ARC | 6mm ARC | 6mm ARC |
| Receiver | ICAR-pattern set (PSA Sabre-IC, Quadradyn-modified) | ICAR-pattern set (PSA Sabre-IC, Quadradyn-modified) | ICAR-pattern set (PSA Sabre-IC, Quadradyn-modified) |
| Magazine | Magpul PMAG 25 ICAR | Magpul PMAG 25 ICAR | Magpul PMAG 25 ICAR |
| Barrel | 12.5 in stainless — more precise, less durable | 12.5 in CMV — more durable, less precise | 12.5 in CMV |
| Gas block | Clamp-on adjustable | Set-screw adjustable | Set-screwed and pinned, non-adjustable |
| Bolt | Enhanced Type II | Reinforced, thicker bolt-face rim | Reinforced, thicker bolt-face rim |
| Trigger | ALG ACT | ALG QMS | ALG QMS |
| Finish | Cerakote | Cerakote | Duraveil (infrared-invisible exterior, ultra-slick interior) |
| Accuracy note | Best | Slightly less than stainless | Pinned block can decrease accuracy above 500 yards, especially after thousands of rounds |
| Warranty | Two-owner lifetime* | Two-owner lifetime* | Two-owner lifetime* |
| Configure → | Configure → | Configure → |
* Coverage follows the original purchaser and one subsequent owner. Consumable parts, including the barrel and springs, are excluded. Full written terms govern.
Ordering
SEC.03 // LOGISTICSFFL transfer & shipping +
Complete firearms ship insured only to a valid receiving FFL. The purchaser is responsible for selecting the dealer, completing all required transfer paperwork, paying dealer fees, and confirming that the configuration is lawful in the destination jurisdiction. We coordinate license verification before dispatch.
Lead time +
Stainless and CMV SARC-6 rifles are in stock and ship in one to three weeks after your receiving dealer's license is verified. Spec-Ops rifles are built in limited quantities; if one is not in stock, contact us for a special order.
Double Lifetime Warranty +
Quadradyn's Double Lifetime Warranty is structured for two lawful owners: the original retail purchaser and one registered subsequent owner. Eligible non-consumable components and workmanship are covered; barrels, springs, other consumables, and normal-wear parts are excluded. Full written terms, registration requirements, and available remedies govern every claim.
Service & technical support +
Every SARC-6 leaves Quadradyn after documented dimensional and functional inspection. Owners receive direct support for configuration questions, service coordination, warranty intake, and compatible-part guidance.
Quadradyn Society membership +
Every Quadradyn firearm includes complimentary lifetime membership in the Quadradyn Society, with access to member research and news plus invitations to select training opportunities as they become available. Participation and event access remain subject to eligibility, capacity, and applicable law.
Services
SEC.04 // FINISHING & PURCHASINGFinishing
Firearm Cerakote from a certified applicator, including our proprietary Duraveil process for ARs. Submit photos, get a quote, book a drop-off.
Purchasing
Cash offers on most firearms with a receipt showing the serial number transferred to us. Appointment only; submit the form first.
Read the file behind the rifle.FILE-006
How 6mm ARC went from a Department of Defense brief to Delta Force’s hands, who owns the ICAR name, and what Quadradyn changed to bring the configuration to the public.