【T-N.T. APS-X HOP-UP SYSTEM】
S&T M1903 FULL HOP-UP RETROFIT KIT / UPGRADE CYLINDER SET / UPGRADE SEAR SET
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T-N.T. STUDIO 所推出的熱銷系列產品：S&T M1903  專用升級HOP座、升級汽缸總成、升級司牙套組，徹底改善與強化了M1903的不足之處。

產品特色：
●S&T M1903專用-升級HOP座
鋁製CNC一體式HOP座，膠皮全包覆式的設計，氣密度更佳；HOP下壓桿加入了 T-N.T. 獨創的HOP定位下壓塊設計，使用6*6mm 下壓塊，加大的HOP下壓區域，標配使用TR-HOP VSR規格膠皮 與 S+ 精密雙內徑日蝕氣墊內管，射擊性能有感大幅提升！

●S&T M1903專用-升級汽缸總成
​鋼製汽缸、汽缸頭、尾頂桿，大幅提升耐用度與使用壽命；輕量化活塞可減輕射擊時活塞施放後的撞擊力度以提升穩定度；使用7mm彈簧。

●S&T M1903專用-鋼製司牙套組
​大幅提升扳機組件的強度與使用壽命，可調阻鐵也能藉由螺絲調整尾頂桿角度以校正45度活塞的翹尾問題，調整得當能讓回推槍機的上膛動作更加輕鬆滑順。

套組內標配TR-HOP VSR膠皮 (或可選用 H.L.R. VSR膠皮)，建議搭配 S+ 精密雙內徑日蝕氣墊內管 或 HS+ 精密雙內徑重型日蝕內管，高效率的膠皮與精密雙內徑氣墊內管 相輔相成，不管是遠程射擊或是精密射擊，表現都是讓人驚艷連連！
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【TR-HOP 膠皮】：適合搭配加重彈使用；遠距離射擊。
【H.L.R. 膠皮】：適合搭配加重彈使用；中～遠距離射擊穩定度更佳。

T-N.T. STUDIO's hot-selling series of products : S&T M1903 upgrade HOP chamber, upgrade cylinder set, upgrade sear set, completely improve and strengthen the shortcomings of M1903.​

Features :
●S&T M1903 - Upgrade HOP chamber
Aluminum CNC one-piece HOP chamber, full-covered HOP bucking design, better air-seal; HOP lever joined T-N.T. original HOP positioning nub design, enlarged HOP pressure area, standard using TR-HOP VSR bucking and S+ precision dual inner diameter eclipse air-cushion inner barrel, the shooting performance is greatly improved!!
●S&T M1903 - Upgrade cylinder set
​Steel cylinder, steel cylinder head and spring guide greatly improve durability and service life; lightweight piston can reduce the impact sound after the piston is released during shooting; 7mm spring used.
●S&T M1903-Steel sear Set
​Greatly improve the strength and service life of the trigger assembly, and the adjustable sear can also adjust the angle of the piston tail with screws to correct the warping problem of the 45degree piston. Proper adjustment can make the loading action of the pushback bolt easier and smoother.

The set comes standard with TR-HOP VSR bucking (or optional H.L.R. VSR bucking), it is recommended to use S+ precision dual inner diameter eclipse air-cushion inner barrel or HS+ precision dual inner diameter heavy eclipse air-cushion inner barrel, high-efficiency HOP bucking and precision dual inner diameter air-cushion inner barrel complements each other, whether it is long-range shooting or precision shooting, the performance is amazing!!

​【TR-HOP bucking】:
●Suitable for sniper rifle, use with heavier BBs.
●More wider HOP-UP contact area.
●Long-range shooting.
【H.L.R. bucking】:
●Suitable for use with heavier BBs.
●More accurate BB loading position.
●Medium ~ long-range shooting stability is better.

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S&T M1903 升級套件 / UPGRADE KIT

【S&T M1903 Retrofit kit】S+ 517mm

NT$4,500.00

【S&T M1903 HOP-UP Chamber set】

NT$2,050.00

【TR-HOP BUCKING】S&T M1903 / 50°

NT$525.00

【TR-HOP BUCKING】S&T M1903 / 60°

NT$525.00

【H.L.R. BUCKING】S&T M1903 / 50°

NT$525.00

【H.L.R. BUCKING】S&T M1903 / 60°

NT$525.00

【T-N.T.】S&T M1903 / Upgrade steel cylinder set

NT$3,700.00

【T-N.T.】S&T M1903 / Upgrade steel sear set

NT$2,200.00

【T-N.T.】S&T M1903 / Safe effort spring / M130

NT$470.00

【T-N.T.】S&T M1903 / Safe effort spring / M150

NT$470.00

Material: Aluminum, Bronze, Rubber

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​MADE IN TAIWAN