+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Meta Tactical Gen 3-4/ SF Glock 21 Barrel MTB-21 Color: Black, Finish: Nitride, 15% Off Plus Blazin' Deal w/ Free Shipping

Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
1 of 5 images
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
2 of 5 images
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
3 of 5 images
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
4 of 5 images
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21
5 of 5 images
Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21

Tap Tap to Zoom

Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
Questions & Answers

Huge Cyber Monday Savings on all Meta Tactical Products

See promotional details
Blazin' Deal
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
Color: Black Finish: Nitride Fabric/Material: Chrome Moly Caliber: .45 ACP Gun Make: Glock Gun Model: Glock 21 Barrel Length: 16 inBarrel Material: Chrome Moly Barrel Twist Rate: 1-16 Flutes: No Rifling Profile: Polygonal

Code: 5J2-BPI-MTGA29-MTB-21

MPN: MTB-21

UPC: 810108181217

Blazin' Deal
List: $300.00Save 15%
$255.00

made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Meta Tactical Gen 3-4/ SF Glock 21 Barrel

META 16in .45 ACP Barrel for Glock 21 (Gens 3-4). Combine this barrel with an APEX Bullpup Carbine Conversion Kit for a compact, precision shooting experience. The slim, ultra-lightweight 16in barrel design is a result of years of experience combined with around the clock R&D and testing.image

Specifications for Meta Tactical Gen 3-4/ SF Glock 21 Barrel:

Manufacturer: Meta Tactical
Color: Black
Finish: Nitride
Fabric/Material: Chrome Moly
Caliber: .45 ACP
Gun Make: Glock
Gun Model: Glock 21
Barrel Length: 16 in
Barrel Material: Chrome Moly
Barrel Twist Rate: 1-16
Flutes: No
Rifling Profile: Polygonal
Country of Origin: USA

Features of Meta Tactical Gen 3-4/ SF Glock 21 Barrel

  • American Steel
  • Polygonal Rifled
  • Button Rifled
  • High Precision / Tight Tolerance machining
  • Improved Lock up for increased reliability and accuracy

Package Contents:

  • Meta Tactical Gen 3-4/ SF Glock 21 Barrel
  • Thread Protector
  • Muzzle Device

What firearm models does the manufacturer say Meta Tactical Gen 3-4/ SF Glock 21 Barrel is compatible with?

The manufacturer says that Meta Tactical Gen 3-4/ SF Glock 21 Barrel is compatible with Glock 21

Meta Tactical Gen 3-4/ SF Glock 21 Barrel Orderable Models

List of Orderable Models

  • Meta Tactical Gen 3-4/ SF Glock 21 Barrel, .45 ACP, 16in, 1-16 Twist, Black, MTB-21 , MPN: MTB-21 , UPC: 810108181217 , Code: 5J2-BPI-MTGA29-MTB-21
Compare (0)
1 item has been added
Add at least two items to compare