Description

Thunder Beast Arms (TBAC) 338 Ultra RR-BA Silencer

The ULTRA 338 Gen2 RR-BA is Thunder Beast Arms Corp’s most advanced .338-caliber suppressor, purpose-built for long-range precision shooters who demand maximum suppression and enhanced recoil control. The RR (Race Ready) variant features a redesigned end cap that nearly doubles recoil reduction compared to the standard flat-cap model—offering up to 54% recoil reduction on .338 Lapua Magnum platforms.

Constructed from 100% titanium with a tubeless, fully welded baffle stack, the ULTRA 338 RR-BA delivers class-leading sound suppression, rock-solid point-of-impact repeatability, and lightweight handling. The BA (Brake Attach) mount is compatible with legacy 338BA and 30BA brakes, making it ideal for shooters already invested in the TBAC ecosystem.

Race Ready (RR) End Cap
Delivers up to 54% recoil reduction on .338 Lapua Magnum

Brake Attach (BA) Mount
Compatible with TBAC 338BA and 30BA brakes

Titanium Construction
Lightweight, corrosion-resistant, and magnum-rated

Tubeless, Fully Welded Design
Maximizes strength-to-weight ratio

Helical Baffle Stack
Optimized for long-range precision and minimal POI shift

Backwards Compatible
Works with legacy TBAC brake systems; adaptable with CB2BA adapter

Black Cerakote Finish
Ideal suppressor finish to protect against wear and tear

Magnum Rated
Designed around .338 Lapua Magnum; handles a wide range of big-bore cartridges

Rock-Solid Repeatability
Maintains zero and accuracy across mounting cycles

Made in the USA
Backed by TBAC’s Limited Lifetime Warranty

Specifications

Caliber: .338 (up to .338 Lapua Magnum / .338 RUM)
Mount Type: Brake Attach (BA) – 338BA or 30BA brakes
Recoil Reduction: 54% (RR variant) vs. 32% (standard cap) on .338 LM
Material: Titanium
Construction: Tubeless, fully welded
Diameter:
- Body: 1.8″
- Collar: 1.85″
Length: Approx. 9.5″ (varies slightly with RR cap)
Weight: Approx. 17–18 oz (varies by brake and cap)
Brake Material: Heat-treated 17-4 stainless steel
Brake Finish: Ionbond DLC
Brake Thread Pitch: 5/8×24
Finish: Black Cerakote
Minimum Barrel Length (for .338 LM): 16″
Use Case: Long-range precision, competition, and magnum bolt-action rifles
Warranty: TBAC Limited Lifetime Warranty

PURCHASE DETAILS

You must be 21 to purchase NFA items

You must live in a state that allows ownership

NO RETURNS ON NFA ITEMS (Disapprovals are subject to a 15% re-stocking fee)

Class 3 NFA firearms must be shipped to a Class 2 or Class 3 FFL Dealer. Class 3 ownership/possession differs from state to state. It is your responsibility to verify local, state and federal laws/restrictions if the Class 3/NFA firearm is legal in your state before placing an order.