
LayLax Prometheus EG Tight Bore 300mm AEG Inner Barrel (Thompson, MC+, & M733)
Laylax
- SKU:
- GGT-LAY-PRO-BRL300
- UPC:
- 4582109580448
- Shipping:
- Calculated at Checkout
$67.95
Why buy from Airsoft Station?
-
FREE SHIPPINGOn purchases over $199
(lower 48 states) -
Returns & WarrantyReturns & Warranty Policy
for 30 days -
RAVE reviewsRated 4.6/5 by 35,000+
Happy Customers
Upgrade your AEG with this tight bore inner barrel designed for Thompson, MC+, and M733 style airsoft rifles, and other AEGs with a similar inner barrel length. The 6.03mm inner diameter prevents the BB from moving around excessively within the barrel, while providing improved range and accuracy. Constructed fully from stainless steel, this inner barrel is ready to withstand the hardships of airsoft warfare, while remaining lightweight.
Features:
- Compatible with Outer Barrel Diameter 8.6mm - 9.2mm
- Precision 6.03mm Inner Diameter
- Internally Polished w/ Precision Crown
- Provides Improved Range and Accuracy
- Keeps BB Stable
Parts Return Policy
Customer Reviews
We're currently collecting product reviews for this item. In the meantime, here are some reviews from our past customers sharing their overall shopping experience.
4.6
Out of 5.0

Overall Rating
94%
of customers that buyfrom this merchant give
them a 4 or 5-Star rating.
April 19, 2025 by Rob H. (FL, United States)
“Plenty of options. Product was as advertised and arrived when they said it would. Would purchase there again.”
Product Choice
Kids
Company Choice
Kids told me
April 18, 2025 by Adrian C. (United States)
“Pretty good.... sending back a desert eagle for slide getting stuck but the one time I shot it, I was very satisfied....”
Product Choice
Love the look....
Company Choice
From a coworker....
April 18, 2025 by Carlos M. (United States)
“Working with John S has been very pleasant. I appreciate the help he has provided.”
Product Choice
Another Law Enforcement agency obtained the product.
Company Choice
I was looking into alternate training methods that would be cost effective and found several websites that were similar. I took a chance.