Silverback

AEG Type spring, 100 Newton

MDRX Replacement O-ring set (Complete)

MDRX 16 Inch Handguard - FDE

Silverback SRS-A2 Spare Nylon Stock (OD Green) Left Handed

APS 13 mm, 150 Newtons spring


This spring is following the “APS 13 mm standard” (for 9 mm outside diameter spring guide). It will fit any rifle compatible with this standard, including all SRS (except push mechanism) and all TAC-41. While being compres

CNC Steel version of the variable mass piston body, for extreme mass configuration (55.1 grams instead of 19.0 grams for the aluminium version).


Compatible with:



– original SRS piston (SBA-BPS-13)

– original TAC-41 piston (SBA-BPS-30)

TAC 41 Standard Bolt End Cap

Carbon Barrel Extension, XS size