The primary purpose of the BoreLock mounting collar is to enable the user to continue using a flash hider or a muzzle brake that is already on the weapon. To be compatible with the BoreLock mounting collar and suppressors, the muzzle device needs to be under 22 mm in diameter and have a maximum length of 63 mm.
1/2"x28 UNEF ( M4/M16, C7/C8, HK416 etc. )
The approximate size of the packed product or the sales package is 90 x 100 x 30 mm.
This product can be delivered only by the methods below: - Pickup in store - Delivery to doorstep as agreed (Matkahuolto Kotijakelu) - Delivery to doorstep as agreed (Posti euro pallet) - Delivery to doorstep as agreed (Posti Home Parcel) - Delivery to doorstep as agreed (Posti rolltainer) - Delivery to doorstep (Matkahuolto Jakopaketti) - Delivery to doorstep (Posti) - Delivery to doorstep (Posti euro pallet, during working hours) - Delivery to doorstep (Posti morning) - Delivery to doorstep (Posti rolltainer, during working hours) - Delivery to doorstep (Posti special pallet) - Letter with tracking - Pickup from parcel locker (Matkahuolto) - Pickup from parcel locker (Posti) - Pickup from parcel locker (PostNord) - Pickup from parcel point (Matkahuolto) - Pickup from parcel point Posti - Pickup from parcel point (PostNord) - Pickup from R-kioski or K-Market Parcel Point (DB Schenker) - Posti freight to doorstep
A must buy with the 556dual, if you want a different brake than the AU one. I used the red locktite myself, and it has stayed in place.
Anonymousverified buyer, 27.2.2025
Overall rating
☆☆☆☆☆
— Show original
Fits well with the Silent Steel silencer.
Anonymousverified buyer, 11.2.2023
Overall rating
☆☆☆☆☆
Heavy and strong but the finish is really far from the commercial pictures.
Won't matter if you intend to use it under the suppressor.
Johannes E.verified buyer, 12.7.2022
Overall rating
☆☆☆☆☆
Works perfectly, fast delivery. Doesn't look nice without the suppressor, but I knew that beforehand and the included cover nut mitigates this a little
Juuso E.verified buyer, 19.5.2021
Overall rating
☆☆☆☆☆
— Show original
A great way to get a muffler attached to a gun if you want to use an existing muffler or flame arrestor.